Mortal Terror

Whenever a creature an opponent controls dies you may draw cards equal to its toughness or power. Whenever a creature you control dies you may deal damage equal to its power to target creature an opponent controls and you take damage equal to its toughness. At the end of the turn if you took more than 10 damage you may return a creature card from your graveyard to your hand.
Sometimes men are born monsters, others are made.