Countervailing Winds⁣ - Hour of Devastation⁣ (Common)⁣ [32]

Countervailing Winds counters a spell unless its controller pays one mana for each card in your graveyard, making it more effective as your game progresses and your graveyard fills up. Its cycling ability allows you to replace it with another card when it's not needed, providing flexibility in control decks. This card is best suited for strategies that aim to fill the graveyard, such as those featuring self-mill or recursion.