Bubbling Muck
Sorcery · {B}
Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}.
From €2.41 at Cardmarket
Sorcery · {B}
Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}.
From €2.41 at Cardmarket