Ciaran, the Lord's Edge

Double Strike
Whenever Ciaran, the Lord's Edge deals combat
damage to a player, you may exile target card
from a graveyard. If a creature card is exiled
this way, you gain 2 life.
At the beginning of your end step, if you gained
life this turn, you may put a +1/+1 counter
on Ciaran, the Lord's Edge.