Efrafa, the Black Rabbit

All Creatures enter the battlefield with one
Suspend counter. As long as your devotion to
colored Mana is more then five Efrafa, the Black
Rabbit is not an Enchantment.
So long as Efrafa, the Black Rabbit is an Enchantment, whenever a creature
leaves play you may pay {p/b}{p/b},
if you do Exile that creature with 3
suspend counters. It then returns as a colorless
Void Beast.