Potion ideas

Hey i just wanted to see what kind of potions we can come up with (this is just a fun post i'm not asking pandette to add any) and what we would want to add, i'm just a curious soul, also i'm ravenclaw. I would like it if they would add the polyjucie potion, it would change are username and skin but the administrator's could see are real name (so we cant frame people), also a potion that would auto cast random spells, kind of like a joke or dueling potion!

Polyjuice is already in the mix, I believe And the dueling one, could get a bit obnoxious?