Xenathon, Lone Venturer

: Whenever a creature you control dies, put a loyalty counter on Xenathon, Lone Venturer and each opponent loses 1 life and you gain 1 life.
0: You may sacrifice a creature. If you do, return target creature card from your graveyard to your hand.
-3: Exile target creature or enchantment. You gain 2 life and put a +1/+1 counter on target creature you control.