Countervailing Winds

Counter target spell unless its controller pays {1} for each card in your graveyard.
Cycling {2} ({2}, Discard this card: Draw a card.)

Amonkhet Remastered

The Eternals had long since mastered every technique taught during the trials.

Hour of Devastation

Count the number of cards in your graveyard as Countervailing Winds resolves to determine how much mana the controller of the target spell must pay to avoid the spell being countered. Countervailing Winds is still on the stack at this time and won’t count toward this number.