Xiao, Vigilant Yaksha

First Strike
Whenever a creature you control enters the
graveyard if it had Deathtouch, Double Strike,
Flying, Hexproof, Indestructible, Intimidate, Lifelink, Trample, or Vigilance you may pay
4 life. If you do Xiao gains a counter for one
of the keywords on that creature. Otherwise Xiao
gains a +1/+1 counter.