His gimmick is probably being extremely overpowered but he can only makes decisions with a yes or no question and decides with his head as an 8 ball fortune teller toy
So like the main village is almost defeated and when delivering the final blow, the 8 ball keeps telling him to “try again next time” and finally lands on something else just for it to be “I dunno try again later” where he get obliterated by the villain having enough time to recover

Search up the eraser from batman