Aatrox, World Ender

Flying, Trample, Lifelink
Whenever Aatrox, World Ender dies or is exiled
from the battlefield, you may pay 6 life and
sacrifice a creature. If you do, return Aatrox,
World Ender to the battlefield and put a +1/+1
counter on it. If Aatrox, World Ender has at least
one +1/+1 counter on it, it has haste.
Did you think you could kill me? Behold, immortality!