Exodus, The Final Revival

When Exodus, The Final Revival enters the battlefield, create a 10/10 Zombie God Token, 2 5/5 Zombie Giant tokens, and 5 2/2 Zombie Tokens.
Exodus, The Final Revival's power and toughness is equal to the amount of zombies you control. Each upkeep, scry X, which is equal to the amount of zombies you control, the draw half that amount of cards, rounded up.