Curate, connect, and discover
I see y'all with your Quiet One Lloyd AUs and I raise you:
AU where Lloyd never met the Ninja again after their initial encounter in Jamanakai Village. He ran off before he could fall into the Hypnobrai tomb, so no one, least of all the Hypnobrai themselves, have any idea how or why it opened.
Couple years down the line, the Ninja (who still have no idea who the Green Ninja is) are getting their butts handed to them by a mysterious masked stranger, wielding an unknown element in the form of some sort of destructive, green-and-purple energy. An out-of-breath Kai angrily demands to know who this guy is, prompting the assailant to dramatically pull off his hood and mask and say,
"What, you've hung so many kids from roofs you can't even remember all of them?"