Void Fiend

The  is a playable character in Risk of Rain 2, added in the Survivors of the Void expansion.

He is an eldritch, void-mutated monstrosity capable of harnessing the Void as a lethal weapon. In battle, his corrupted energy builds up until it reaches a critical point, unleashing his full power and transforming him and his abilities into more aggressive versions.

Trivia

 * The Void Fiend is a corrupted, although he is not the Commando who escaped Petrichor V during the events of the first Risk of Rain game.