Rooftop Percher Dad

You can only cast this spell by spending mana to cast it, this card mana cost can’t change and you can’t cast this spell from anywhere other then your hand. Changeling (This card is every creature type.) Flying, hexproof, annihilator 15 Whenever this creature enters, put all creature cards from all graveyards onto the battlefield under your control, copy all creatures you control, search your library for a card named Rooftop Percher, put that card onto the battlefield, then copy it 500 times.{/fontsize-15}