Until end of turn, whenever you cast a creature spell, if an opponent has 12 or less life and a planeswalker is exiled, target Wolf gets -11/-1 until end of turn.
Undying Mire {B} |Sorcery| Until end of turn, whenever you cast a creature spell, if an opponent has 12 or less life and a planeswalker is exiled, target Wolf gets -11/-1 until end of turn. / Players can’t gain life until end of turn.