Pywreck, the Slaughterer

Haste, menace
Sacrifice a creature: Play a creature card
from your hand without paying its mana
cost, it has haste.
Whenever a creature is sent to the graveyard, you may pay 3 life, if you do, Pywreck, the Slaughterer deals 3 damage to target creature, planeswalker or player.