Leosic, Hound of Blood

Menace, Haste, Trample
Protection from instants and sorceries
Whenever this creature does combat damage to
any target, or whenever you sacrifice a permanent,
you may pay 2 life and discard a card. If you do,
this creature gains hexproof, and you put a +1/+1 counter on it. If you don't, then each opponent
loses 1 life and sacrifices a non land permanent.
{3} Sacrifice a permanent you control : You gain 1
life and deal 1 damage to any target.