Child of Rebirth

When a Maw Cultist Being enters the field, exile
a Being card with defense equal to or less than
this card's defense from the field.
Atrocity - {2}{g}, sacrifice a Being or Creature card:
You may play a Being card exiled by this card's ability. That card's type becomes Maw Cultist
and you can use any supply to activate its abilities.
If the sacrificed Being or Creature had defense 3
or higher, create a token copy of the card played
by this ability.