Falstarn, Undead Centaur

Haste, Trample
If Falstarn, Undead Centaur would leave
from the battlefield, instead put two -1/-1
counters on it.
If Falstarn, Undead Centaur has 6 or more
-1/-1 counters on it, destroy target creature.
Then, sacrifice Falstarn, Undead Centaur.
You'll die before I do.