Whispers of the Devil

Buyback {3}{b} (You may pay an additional
{3}{b} as you cast this spell. If you do, put this card into your hand as it resolves.)
You gain 1 life. Then reveal the top card of your library and put that card into your hand. You lose life equal to its converted mana cost.
Greed makes people blind and foolish, and makes
them easy prey for death.