Curate, connect, and discover
unicorn concept, horns are their own separate species, highly magical, nonsentient, driven by instinct, need to be inside of a living creature to get nutrients, stab into a horse head, make the HORSE sentient and magical by altering its brain.
and the symbiote horn gets nutrients from the horses body.
horse is not in pain.
though becoming suddenly sapient is very upsetting for a lot of them.