Godplayer

''We have the power of gods. That does not mean we can play God.  - Kaito Nakamura, Heroes''

A Godplayer is often a form of Self-Insertion through use of an avatar.

They commonly break laws of canon and generally warp the story or RP to be as they see it, regardless of anyone else. Usually, said canon manipulation is used as a way to a) get to the Lust Object, b) kill off the character/s they don't like, or c) rewrite an episode or season or film or book so that the ending suits them. The effort fails 98.7% of the time.

Gem Stoned and Forlay were Godplayer!Sues.