<Quick Rando Ideas>

Child-ish Ball and Chain wielder. Teacher died to The Harrowing but precautionary measures made his soul enter the Ball and Chain. Child takes damage from missed skills, empowered skills from Teacher's soul heal him. Zoning move similar to Aurelion Sol W with recast tossing himself and the ball forward. Maybe because he isn't fully grown he can use the ball as an anchor to toss spin himself?

Thief + Genie combo. Genie's magic is tied to the thief, and thus forces her to run from him by teleporting herself to enemies. Thief's goal in gameplay is to steal the lamp to access his 3 magic empowered abilities to complete the gank/teamfight. Unsure what kind of spells would work, but I know the joke would be about his first wish being a sandwich.

Bilgewater Serpent Caller. Instead of full on traditional, he's a for-hire serpent caller for fishing/pirate boats who decides to change his occupation to hero once Fizz shows up. Grungy, drunken, an all around fuck-up. Uses rum covered spears and calls a serpent to spear enemies with his ult.