Flying
You may discard Circling Vultures any time you could cast an instant.
At the beginning of your upkeep, sacrifice Circling Vultures unless you exile the top creature card of your graveyard.
Flying
During your upkeep, remove the top creature card in your graveyard from the game or bury Circling Vultures.
If Circling Vultures is in your hand, you may discard it. Play this ability as an instant.
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