Board Thread:Questions and Answers/@comment-27327020-20160404174206/@comment-25181180-20160425140149

From what I've seen, an alive Chara would've approximately the same amount of power as Frisk. However, the revived Chara who lusted for eradication has a stronger determination, and becomes stronger everytime our LOVE increased. Since Chara can't be killed (as Chara had absorbed our powers, hinted in some parts), they deal a huge amount of damage, and have the ability to erase the Underworld (not the Surface) alongside some of Frisk's powers. At least that's how some "theoritics" says.