Berserk Corpse

Deathless(When this creature dies, if it had no
-1/-1 counters on it, return it to the battlefield with a -1/-1 counter on it. It becomes
a Zombie in addition to its other types.)
When Berserk Corpse enters the battlefield, if it has a -1/-1 counter on it, it gains +2/+2, haste, and trample until the
end of your next turn.