Krarxx, Kryctormancer

Deathtouch, Indestructible
Tap 5 untapped zombies you control: Place
Krarxx, Kryctormancer into your graveyard.
{b/g}{b/g}{b/g}: Return target non-black non-zombie
creature from your graveyard to the battlefield
with X -1/-1 counters on it, where X is half that creature's power rounded up. That creature
becomes a zombie in addition to its other types.