Tell Me Lily And Snape Didn't Invent New Magical Drug Potions While Smoking (gilly)weed In Moaning Myrtle's

tom riddle is a yapper. he loves his monologues and dramatics.

draco malfoy is a yapper. he, too, loves the sound of his voice and dramatics.

ron weasley has no qualms about being loud and seen. he grew up in a large household, fighting to be heard over his siblings.

harry potter grew up in a cupboard, friendless except for the spiders, and learned to subdue and suppress and submit at the dursleys. he isn’t loud, he isn’t boisterous, he isn’t talkative, he doesn’t like socialising, he keeps his opinions in his head and his feelings buried inside, he has very few close friends, he doesn’t reveal his worries and struggles easily, he dislikes showing his pain and weakness, and he sure doesn’t give up his secrets and personal details freely, sometimes not even to ron and hermione.

this is what canon harry’s like—very quiet and an introvert, someone who speaks when spoken to or has cause to broadcast his voice, and someone who’d rather blend into the walls than draw unnecessary attention to himself.

It’s Mother’s Day coming up, so I’m thinking of all the women in my life and all the awesome roles they play (mothers, non-mothers, and never-mothers alike).

http://everythingisgoingtobeokcomic.com/well-behaved-women

ah well, people can be a bit stupid about their pets.

- hagrid

Secrets of the Darkest Art: How to Make a Horcrux

So I saw many theories regarding how to make a Horcrux, but none of them really made perfect sense to me, so I decided to give it a crack myself as part of my mission to understand Lord Voldemort/Tom Marvolo Riddle (Which I think I did, big post coming about that at some point, this is but another piece of that puzzle of a man)

So this is my reverse engineering of a ritual to create Horcruxes based on book evidence, my knowledge of real-world alchemy, real-world ancient Greek cults and rituals and linguistic analysis.

How to reverse engineering a dark magical ritual:

The first thing, is to define what we knew fore certain:

The name: "Horcrux"

The creator is an Ancient Greek wizard named Harpo the Foul.

A death is required in the making.

A Horcrux holds a piece of the casters soul that anchors them to life so they won't die.

I'll actually start with the third point.

How to split a soul?

Both Dumbledore and Slughorn mention a death being required to tear your soul to make a Horcrux, and that never really sat right with me. It magically doesn't make sense and even the canon examples we have for Horcrux murders make this statment iffy.

We have seven examples of murders used to create Horcruxs (thanks to one Tom Riddle being dramatic):

The Diary - Myrtle Warren - killed by a basilisk. Sure, Tom freed the Basilisk, but it hardly seemed targeted at Myrtle specifically and you can argue he didn't actually kill her (more a manslaughter by negligence). He didn't cast the spell, so how come this tore his soul?

The Ring - his father (Tom Riddle Sr) - Avada Kadevra.

The Cup - Hepzibah Smith - she was poisoned by her house elf. Sure, the elf was under the imperious, but it wasn't a first-degree murder, and like with the Basilisk I find it hard to consider this the same as casting a killing curse. Magically those are very different things.

The Locket - Muggle Tramp - Avada Kadevra

The Diadem - Albanian Peasant - Avada Kadevra

Harry Potter - himself - backfired Avada Kadevra

Nagini - Bertha Jorkins - Avada Kadevra

Now, I used the term "magically different" or "magically make sense" what do I mean by that?

Well, besides the fact I'm going to make a full post about how I see magical theory in the Harry Potter Wizarding World, I'll say it takes a lot after occult philosophies from Alchemy that are very old, Slughorn mentions as much in book 6 and there are a few other references to it. I'm just gonna cover the basics required for this theory.

In Alchemy, everything (people, animals, plants and rocks) are built of three base components:

The Salt - the body - the physical form.

The Sulfur - the soul - the self that holds the divine flame.

The Murcury - the spirit - the life essence that binds the salt and sulfer together.

Now, in Alchemy, the main study is in purifying and combining these different aspects of material. Let's look at a herb, for an example:

If we want to retrieve its salt, we'll dry the herb completely using fire to leave behind a fine light grey ash that represents only the physical form.

If we wanted its mercury we'd distill all liquids from it until we get a purified, clear liquid which in the case of plants would be alcohol (it's why alcohol is referred to as "spirit").

And if we wanted its soul, we would take the remains from the distillation and drying process which would be a kind of oil.

(it can get more complicated with different materials, but this isn't a post about Alchemy)

Now, back to Horcruxs.

So, if we would want to split a soul, Alchemecly, how do we go about it?

Well, we don't. Not really. See a soul can't really be split, as every part of it, every bit of that oil from our random herb represents the entire soul. It's why something like a Horcrux could theoretically work in giving a full life to the diary the way we see in Chamber of Secrets.

Additionally, to work with any material in Alchemy, you are required to purify it first. It means that to get a piece of soul to bind to a diary, you need a pure soul.

Killing someone else won't sever your own soul from the spirit and the body, it's not how this works. Killing someone severs their spirit and therefore splits their body, spirit, and soul. Besides, an Ancient Greek man, like Herpo was, would hardly consider murder as vile as we do today. It wouldn't even cross his mind that any murder (even an indirect one) could harm one's own soul.

No, the only way to "split" a soul is to first sever it from life, disconnecting the bond between soul and body. Essentially, the only way to promise you immortality is to kill yourself.

I know it sounds a little confusing, but, essentially, once the soul is severed from the spirit and body you can split it. Think of the herbal oil, once you have the oil, separate from the rest of the plant parts, you can combine it with new ingredients. You can only work on a specific aspect once you severed it from the other two and as what binds all three together is spirit — life — the only way to do it for a human soul — is death.

But really, how?

Well, here comes the second thing we know about making Horcruxs — that dear Herpo was Ancient Greek.

In Ancient Greece they had multiple different religious cults, some of which were Chthonic cults. Cults that dedicated themselves to death or ditties and heroes associated with death and more importantly — rebirth.

Many of these cults were dedicated to figures like Orpheous, Dyonysus, Persephone, characters in mythology who are known for going through the underworld — through death — and coming back out. These cults were very secretive and not much is known about their practices, but some is.

What is known is that they had rituals were they reenacted a death and then rebirth (usually drinking wine — a water if life, was the representation of rebirth).

This created a very clear idea in my head — to split a soul, you'll have to ritualisticlly, magically kill yourself, severe a peice of your soul and then revive yourself with a water of life — a potion.

This potion is never mentioned, but I believe it exists due to these Chthonic cult rituals and how they were structured. Not only that, but the Greek underworld did have a river known for being incredibly painful to drink, literally made of fire, but being able to bring the dead back - The Phlegethon River.

Note: Lethe River Water (the river in the Greek Underworld that makes the drinker forget) is a canon ingredient in a Forgetfulness Potion.

So what is the dead body for?

Well, congratulations, you killed yourself to retrieve a sliver of your soul and revived yourself so you won't stay dead. You found an item you can keep secure to tie that sliver of soul, too. Now, how would you bind then? After all, the only thing meant to bind a human soul to a body is a human spirit - a human life... you get where I'm going with this.

This is why Tom didn't have to be the one to do the deed. As long as he had a recently deceased corpse to harvest the life from to use to bind his newly split soul and the item of his choice.

It explains why nothing was missing from the bodies. Myrtle and the Riddles were investigated by the Ministry of Magic. One would assume the aurors would've noticed if any corpse was missing a hand due to the killer eating it (as other Horcrux theories suggest).

Not only was nothing missing from the body, the soul was intact. Myrtle became a ghost after death, a ghost is quite literally, just the soul, no body, no spirit.

So the only thing that was taken from Tom's victims was their life, quite literally at that.

Is that all? Can we make a Horcrux now?

Not really. See, when analyzing spells in Harry Potter is their name.

Avada Kadevra - is a reference to an Aramaic healing spell "Abracadabra" pronounced in Aramaic as: "Avra Kadebra" and meaning "I will create as commanded". Merged with the Latin word "cadaver" meaning "corpse" to create -> "I will create dead bodies as commanded"

Or Wingardium Laviosa - is a cross of the English word "wing", the Latin word "arduus" (meaning "high, tall, lofty, steep, proudly elevated"), or "arduum" (meaning "steep place, the steep" and the Latin word "levo" (meaning to "raise, lift up"). So together the spell means -> "lift high up".

So, it's pretty clear spells, their names and incantations are very self-explanatory. So a Horcrux should be no different.

I've seen some attempts at translating the name Horcrux. Unfortunately, these attempts treated the name as Latin, modern Greek, or Old English. Herpo, was Ancient Greek, though, so I went and translated a few possible meanings from Ancient Greek (Classical Greek and Homeric Greek are what I looked at):

ὅρκος (orkus, pronounced "hor-kus") - an oath, the object by which one swears, bound by oath (still used in modern Greek).

κρόκες (crukes, pronounced "cru-kes") - saffron-colored (blood red in Greek), crocus flower. The crocus flower symbolizes both death (the saffron that is the spice) and rebirth (the golden crocus which brings renewal and joy) because Demeter wears them when Persephone returns from the underworld in myth.

So what we have is a spell called "binding oath of death and rebirth" which all around sounds fitting.

There might also be a "made in blood" tucked at the end due to the association of κρόκες with the color of blood.

But what does it matter?

Well, somewhat. As now with this name, I expect the binding between the spirit from the victim, the split soul, and the item would be done in a sort of oath - an orkus.

The association with blood gives us another hint. Blood is the part of the human body most representative of life. Therefore, in Alchemy, your blood is your spirit. So it'll make sense that your own blood would be used in the binding process or more correctly in the process of turning another person's spirit into your own. Making the thread to bind the body (item) and the soul piece your own. As it also refers to just a red firey color, it can indicate the Phlagatton potion I hypothesize should be part of the ritual due to how Chthonic rituals usually went, as the Phlagaton river is made of fire.

So we have a general idea on how to make a Horcrux. You need an item of your choice to bind your soul to. You need a life (spirit) harvested from a human that you transformed into being your own using your blood. And you need a piece of your own soul, which you get by killing yourself and then reviving yourself. And you finish it off by binding it all together with an oath.

But how could you make one accidentally?

So, everyone knows Voldemort succeeded in somehow making a Horcrux accidentally, something a lot of theories I saw don't account for. Becouse whatever process you need to go to to make a Horcrux, Voldemort went through all of it the night he died the first time and marked Harry.

All the steps for my method of making a Horcrux were met that night.

The item in qustion is baby Harry, nothing interesting there.

The soul sliver was split the way it always is — through death. Voldemort dies, killed by his own killing curse and that is what splits his soul.

The life or spirit that then binds his soul to Harry isn't Lily's spirit or James'; it's his own spirit that acts as a binder between Harry and Voldemort’s split soul. Because the spirit was already his, there was no need to transform it by blood.

Step-by-step guide to making Horcruxes:

I'm not going to actually give the full step-by-step least a budging dark lord is looking for this information. I do have notes about exact incantations and even the full recipe and instructions for the Phlagaton potion I'm going to mention. These instructions won't be here since they are more in the realm of speculation and headcanon. This is just the overview of the ritual based on canon information and the occult philosophy I mentioned above.

Step 1 - Life and Blood

Get access to a recently deceased human and extract their Mercury (Spirit or Life Essence).

Submerge the retrieved life essence with your own blood on a new moon (life and vitality). (7 drops of blood will probably do)

Step 2 - Water of Fire

To complete the cycle of death and rebirth you’ll need the Phlegeton Water potion to return you to life at the end of the cycle.

As you brew the potion, it must be brewed in a dark room, preferably underground to remind as much of the underworld as possible.

While brewing the potion one must be in the mindset of the Phlegeton, must be willing to go through agony to achieve eternal life and imbue these thoughts in their potion. (In alchemy, when working, it is believed you imbue your work with your thoughts during the Alchemical process. As an Alchemical process affects both the material being worked and the Alchemist themselves)

Likley Ingrediants:

Saffron spice

Golden crocus flower juice

Pomegranate juice

Step 3 - The Ritual Preparation

Set up your space so none of the components may escape the ritual space and so the ritual will not be interfered with.

Make sure the spirit you retrieved is within reach.

Make sure the item you desire will hold the Horcrux will be within reach as well.

Coax the spirit into the item and prepare it to tie your soul to the next step.

Step 4 - Death and Rebirth

To create a thread of your soul to tie to the ritual, you must die figuratively. Go through death to return stronger from the underworld.

Once you feel like death has reached you and your soul is separated you should heal your soul and finish the cycle, bringing you out of death and back to life by drinking the Phlegeton potion.

After the pain subsides you will feel healthier than before, stronger than before, and you’ll have an additional thread of sulfur (soul) in your chest to be pulled out and placed into the Horcrux.

The split-off soul should, on its own, try to search for life and a body to be bound to. If it doesn't, coax it out yourself and bind it to the Horcrux with the spirit you made in step 1.

Step 5 - Oath of Life

The connection between the body (the item), soul, and spirit is still unstable, if most likely strong enough to hold.

Swear the oath of life to finalise the bound between you, the Horcrux, and the soul thread together to ward off death.

I'll end with this note I made regarding Horcruxes when I started working on this theory:

I don't know what all goes into the process of making a Horcrux but I don't believe a person who truly likes themselves and doesn't want to inflict pain on themselves could make a Horcrux. Tearing up your soul is an act of arrogance above nature, sure, thinking you deserve to change the laws of the world and be the exception is part of it, but it's also an act of self-hatred. You need to hate yourself enough to be willing to kill yourself, hurt yourself, and tear yourself up in the most unnatural ways — hence why so few can do so, let alone more than once.

And Tom Riddle does seem to have that exact mix of arrogance, spite, and low self-esteem that would allow it.

"this female character is underdeveloped" TO YOU. I can read subtext and I know all about her backstory and her rich inner life. also she told me personally

McGonagall and Trelawny anything but deep disdain is making me laugh, but ..reblogging for the intrigue

the official lesbian hogwarts professor relationship chart

I've always liked the idea of magic working in whimsical and mysterious ways, more than the school of thought that makes magic more 'technical'. The way Harry Potter's story is, I feel like I've been conditioned to enjoy the interplay between "magic" and "luck".

This to say, I'd always imagined Peter as a powerful wizard that few recognized until Voldemort. I imagine Dumbledore never had a clue-- he makes mistakes, he misses things. I like to imagine either James or Lily had a subconscious inkling, but never really thought about it. James just knew Peter was a self-conscious little fool at times, when he didn't need to be, really, see Peter! you became a freakin animagus! idk why you doubt yourself...

Voldemort canonically sought out the Potters at first (the motivations of which, is a whole other topic to whcih I want insight). Peter was a last resort, a means to end, but I imagine Voldemort was clever enough to realize that Peter was meant for the inner circle. Of course, anyone close to his plans for immortality automatically were held close out of necessity. No doubt, Snape initially entered that inner circle not for his Sectumsempra, but because he had been attracted to 'prophecy'/'destiny'. Both Voldie and Harry gradually develop a "sixth sense" for these things.

I personally subscribe to the headcanon of Peter deliberately blasting a nearby gas plant that fateful Nov day. Not only does that theory satisfy my personal belief that Peter was the creative escape-artist of the Marauders (james was most creative at inventing problems, sirius at getting into problems, remus at avoiding problems, peter at getting out of problems), but also allows the Muggles a shred of truth. It's both logical and 'lucky'. (Did Peter set the location of their confrontation deliberately, or was he drawn near to a gas plant through magic?)

Anyway, great Peter meta. Yes to Voldemort negging Peter. GoF Peter is a disgusting pitiful mess. It's fascinating to imagine a 'toxic relationship' there

Voldemort constantly belittling Peter throughout GoF is so interesting because he, Voldemort, is probably the person who best knows Peter's abilities at this point. He expresses surprise at Peter being able to convince Bertha Jorkins to go with him. And like...dude, you of all people KNOW how much of a manipulative snake Peter is, you Know how he convinced Lily and James and Sirius to trust him...why are you acting so surprised? Like Voldemort is the last person who should underestimate Peter. But he does: I think because he knows full well Peter is actually competent but belittles him to keep him loyal. Ohhhh the psychology of these two. It's so fascinating.

(....petermort? someone stop me.)

this 12 year old describes a girl as “glowing like the setting sun” when she blushes and people wonder why they ended up married [x]

Arguing that James Potter’s death meant nothing is such a fundamental misunderstanding of the narrative that it makes me wonder if people have even read the books.

This is a man who ran headfirst toward his death in a desperate attempt to give his wife and son a chance to escape. A selfless, brave act of love that stands in contrast with Voldemort's personal war against death and Snape's desperate plea to bargain for the life of Lily while not caring if her husband or child dies.

James isn’t just a character who dies early, off-page, before the main character is introduced—he becomes a specter who haunts the entire story.

James’s absence profoundly shapes Harry’s journey as he struggles to define himself. His sense of masculinity and self-worth is deeply tied to the father he never knew but constantly strives to emulate. Sirius and Remus, broken by their shared loss, are mere shadows of their former selves, their lives forever marked by James’s death. Even Voldemort acknowledges James with a twisted form of respect when he taunts Harry in the graveyard.

To say James’s death means nothing disregards the emotional heart of the series. Harry’s story is fundamentally about grief—his desperate longing to connect with the family stolen from him, and his eventual journey toward acceptance. It’s about learning to live fully in the face of loss, choosing life over despair, and understanding death not as an enemy but as an inevitable companion.

James’s death isn’t meaningless—it’s pivotal. It echoes throughout the series.

James’s death means everything.

Harry Potter is Really Magically Powerful

So, in continuation to this post, and my desire to show some love to Harry James Potter, this post is dedicated to showing how magically powerful Harry actually is in the books — which is insanely powerful. Harry doesn't think of himself as a great wizard, but he is — definitely powerful enough to be Voldemort's equal (and Dumbledore's for that matter).

Under the cut are some quotes from the books that prove this.

Accidental Magic

Let's start with Harry's childhood accidental magic. Tom was considered prodigious for being able to steal things with magic and make animals obey him intentionally. Neville, as a late bloomer, bounced when thrown, which is the bare minimum of childhood accidental magic young witches and wizards should be doing.

Now he came to think about it…every odd thing that had ever made his aunt and uncle furious with him had happened when he, Harry, had been upset or angry…chased by Dudley’s gang, he had somehow found himself out of their reach…dreading going to school with that ridiculous haircut, he’d managed to make it grow back…and the very last time Dudley had hit him, hadn’t he got his revenge, without even realizing he was doing it? Hadn’t he set a boa constrictor on him?

(Philosopher's Stone, page 44)

Harry has:

Apparated out of Dudley's reach when in danger to get away - advanced magic only allowed to practice from the age of 16!

Growing back all his hair from not liking the bad haircut.

Disappearing the glass of the Boa Constrictor case and leashing it

not even when he’d had to take a school report home to the Dursleys saying that he’d somehow turned his teacher’s wig blue.

(Philosopher's Stone, page 84)

4. Turning his teacher's hair blue.

We see Harry is capable of aparation, transfiguration, and various charms at a level that is considered prodigious. Harry was incredibly advanced as a child according to his feats of magic before even knowing magic was real. And while he wasn't as intentional as Tom, he was aware enough to know odd things happened when he was "furious or upset" that the odd things responded to him.

Intuitive Casting

I wrote later in this post about this, but I do want to write a whole essay about how magic works in the Wizarding world, but like, really in short, emotion and intention matter in magic. A lot.

And we see Harry make use of this fact to great effect. Using spells with intention to change the way they behave and they work for him because of how magically prodigious he is.

Harry raised his own wand. “Protego!” Snape staggered; his wand flew upward, away from Harry — and suddenly Harry’s mind was teeming with memories that were not his — a hook-nosed man was shouting at a cowering woman, while a small dark-haired boy cried in a corner. . . . A greasy-haired teenager sat alone in a dark bedroom, pointing his wand at the ceiling, shooting down flies. . . . A girl was laughing as a scrawny boy tried to mount a bucking broomstick — “ENOUGH!” Harry felt as though he had been pushed hard in the chest; he took several staggering steps backward, hit some of the shelves covering Snape’s walls and heard something crack. Snape was shaking slightly, very white in the face.

(Order of the Phoenix, page 591)

This is from the last of Harry's and Snape's Occlumancy lessons. What's interesting here is that from Snape's words, it seems the protego spell isn't supposed to work like that. Harry is magically powerful enough to make protego (shield charm) to defend him from Legilamancy, turn the Legilamancy onto Snape and disarm Snape.

No wonder Snape is shocked, it really isn't supposed to work. Unless you're Harry Potter, that is.

He did say in their first lesson the rules of magic don't seem to apply to Harry.

“Reparo!” hissed Snape, and the jar sealed itself once more. “Well, Potter . . . that was certainly an improvement. . . .” Panting slightly, Snape straightened the Pensieve in which he had again stored some of his thoughts before starting the lesson, almost as though checking that they were still there. “I don’t remember telling you to use a Shield Charm . . . but there is no doubt that it was effective. . . .”

(Order of the Phoenix, page 591)

What I marked here is the fact in all their occlumancy lessons, even the first, Snape always placed a few memories in the pensive. He chose memories he didn't want Harry to see and place them there.

Okay... so why is that a big deal?

Snape repeatedly belittles Harry's magical skills, and yet, he fears Harry would turn the Legilemancy connection back on him. Legilemancy as Snape explained is no easy skill:

“Only Muggles talk of ‘mind reading.’ The mind is not a book, to be opened at will and examined at leisure. Thoughts are not etched on the inside of skulls, to be perused by any invader. The mind is a complex and many-layered thing, Potter . . . or at least, most minds are. . . .” He smirked. “It is true, however, that those who have mastered Legilimency are able, under certain conditions, to delve into the minds of their victims and to interpret their findings correctly...”

(Order of the Phoenix, pages 350-351)

As such, he doesn't expect Harry to be capable of it. But that’s a lie. He clearly thinks Harry is skilled enough to be a threat in this situation. That Harry just might be able to turn this around and glimpse his own memories, which is no easy feat.

And Snape is many things, but stupid isn't one of them. If he thinks Harry is uniquely magically prodigious to be capable of this, then Harry probably is. Especially considering how much Snape hates Harry and how much he'd rather think he's stupid, useless, and unskilled.

“SHE KILLED SIRIUS!” bellowed Harry. “SHE KILLED HIM — I’LL KILL HER!” And he was off, scrambling up the stone benches. People were shouting behind him but he did not care. The hem of Bellatrix’s robes whipped out of sight ahead and they were back in the room where the brains were swimming. . . . She aimed a curse over her shoulder. The tank rose into the air and tipped. Harry was deluged in the foul-smelling potion within. The brains slipped and slid over him and began spinning their long, colored tentacles, but he shouted, “Wingardium Leviosa!” and they flew into the air away from him. Slipping and sliding he ran on toward the door.

(Order of the Phoenix, page 809)

Okay, so can we talk about this Levitation Charm? Please?

Like, get this, he uses Wingardium Leviosa, like a shield charm that sends multiple magical projectiles away from him. This isn't how this charm works, but it is if you're Harry Potter. (again, this is that intention use I mentioned)

The point is, that Harry is magically powerful enough to bend the way spells are meant to work to fit his will and situation.

And when Voldemort possesses him at the end of the fight in Order of the Phoenix:

He was gone from the hall, he was locked in the coils of a creature with red eyes, so tightly bound that Harry did not know where his body ended and the creature’s began. They were fused together, bound by pain, and there was no escape — And when the creature spoke, it used Harry’s mouth, so that in his agony he felt his jaw move. . . . “Kill me now, Dumbledore. . . .” Blinded and dying, every part of him screaming for release, Harry felt the creature use him again. . . . “If death is nothing, Dumbledore, kill the boy. . . .” Let the pain stop, thought Harry. Let him kill us. . . . End it, Dumbledore. . . . Death is nothing compared to this. . . . And I’ll see Sirius again. . . . And as Harry’s heart filled with emotion, the creature’s coils loosened, the pain was gone, Harry was lying facedown on the floor, his glasses gone, shivering as though he lay upon ice, not wood. . . .

(Order of the Phoenix, page 816)

Harry kicks Voldemort out.

As I mentioned, I have a a whole theory I'm drafting about magical theory and how magic works in the Wizarding World, but emotion as Harry describes in this scene is part of it. Emotion drives childhood accidental magic. Emotion is required to cast the Patronus charm and any of the unforgivable. Because of how emotion is tied to magic in this world, this instance is Harry's magic kicking Voldemort in his full power out of his mind.

Which is an impressive feat of magic.

Advanced Charmwork

“Oh — yeah —” said Harry, quickly forcing his thoughts back to that first broom ride. “Expecto patrono — no, patronum — sorry — expecto patronum, expecto patronum —” Something whooshed suddenly out of the end of his wand; it looked like a wisp of silvery gas. “Did you see that?” said Harry excitedly. “Something happened!”

(Prisoner of Azkaban, page 238)

This is the first time Harry cast a Patronus Charm. On his very first try of this complex charm, most adult wizards fail at — he succeeds. It isn't a perfect casting. His happy memory isn't happy enough, but the problem isn't Harry's skill.

The fact he succeeded in casting it at all with how crap his life has been up to this point is a testament to his magical talent.

Hatred rose in Harry such as he had never known before. He flung himself out from behind the fountain and bellowed “Crucio!” Bellatrix screamed. The spell had knocked her off her feet, but she did not writhe and shriek with pain as Neville had — she was already on her feet again, breathless, no longer laughing.

(Order of the Phoenix, page 810)

Harry, at age fifteen, casts the Cruciatus Curse for the first time. An advanced piece of dark magic that is tricky to cast. Sure, it wasn't the best cast Crucio, but it did work.

It did land.

It worked enough for Bellatrix to stop laughing and start taking Harry seriously.

Harry raised the hawthorn wand beneath the cloak, pointed it at the old goblin, and whispered, for the first time in his life, “Imperio!” A curious sensation shot down Harry’s arm, a feeling of tingling, warmth that seemed to flow from his mind, down the sinews and veins connecting him to the wand and the curse it had just cast.

(Deathly Hollows, page 452)

Like with the Cruciatus Curse, Harry succeeds in the Imperius curse on his first try (and the second try that happens immediately after). In general, Harry learns to cast most spells (even the advanced ones) incredibly quickly — like, on his first try. That's insane!

As Amycus spun around, Harry shouted, “Crucio!” The Death Eater was lifted off his feet. He writhed through the air like a drowning man, thrashing and howling in pain, and then, with a crunch and a shattering of glass, he smashed into the front of a bookcase and crumpled, insensible, to the floor. “I see what Bellatrix meant,” said Harry, the blood thundering through his brain, “you need to really mean it.”

(Deathly Hollows, page 502)

And he gets better over time, both with the Cruciatus Curse, as we see here and his fully corporeal Patronus which is considered an unbelievable feat for a fifteen-year-old:

“Your Patronus had a clearly defined form? I mean to say, it was more than vapor or smoke?” “Yes,” said Harry, feeling both impatient and slightly desperate, “it’s a stag, it’s always a stag.” “Always?” boomed Madam Bones. “You have produced a Patronus before now?” “Yes,” said Harry, “I’ve been doing it for over a year —” “And you are fifteen years old?” “Yes, and —” “You learned this at school?” “Yes, Professor Lupin taught me in my third year, because of the —” “Impressive,” said Madam Bones, staring down at him, “a true Patronus at that age . . . very impressive indeed.”

(Order of the Phoenix, page 141)

I agree Madam Bones, Harry is impressive and is Voldemort's equal magically. Harry isn't just Expelliarmos. he's clever and talented and very magically capable with every spell he tries his hand in.