While there are some who are arguing that Whis, Beerus, and MUI Goku are as strong as or stronger than Beast Gohan, it seems that his DP cost of 4 is what makes most agree he's so overpowered.

Characters like MUI Goku and Beast Gohan have teleport supers, so you can use a super attack followed by an ultimate with incredible ease. Can you Use Items in Legendary Warrior Face-Off?