Vedoriv, Blood Knight

First Strike
Whenever another creature is put into a graveyard from the battlefield, you may put X +1/+1 counters on Vedoriv, Blood Knight where X is that creature's power. If that creature was dealt damage by Vedoriv, Blood Knight this turn, X is that creature's power plus its toughness instead.
War is cruelty and the crueler it is, the sooner it will be over.