Willowbane Unchained

+2: Add {b} to your mana pool equal to half your devotion to black, rounded down. Draw a card and lose 2 life.
-3: Destroy target creature. Scry X, where X is the amount of life you lost this turn.
-8: You get an emblem with "Skip your draw step. Pay 2 life: Draw a card. If it's a swamp, you gain 1 life."