Mutilate
From Warhammer 40,000 Commander set
Mutilate
Sorcery
All creatures get -1/-1 until end of turn for each Swamp you control.
Rulings
- The effect is based on the number of Swamps you control when Mutilate resolves. Only creatures on the battlefield at that time will be affected. The effect won't change later in the turn, even if the number of Swamps you control changes.
