Void

Void is one of the most punishing status cards in the game. It is Unplayable and Ethereal, so it automatically exhausts at end of turn — but its real threat is that it steals 1 Energy the moment it's drawn. In a game where every Energy point matters, losing a full Energy to a Void card can completely derail a turn. Void is primarily added to your deck by the Champ boss fight and certain Act 3 enemy effects. Having multiple Voids in a deck can make Energy management extremely difficult.