Sea Emperor Leviathan

When this creature enters the battlefield, create
five colorless hatching enzyme tokens and five
green 0/2 leviathan egg creature tokens with
defender.
{g}: Sacrifice a hatching enzyme: Sacrifice a
leviathan egg and create a 3/3 green Baby
Leviathan creature token
If you have sacrificed five leviathan eggs,
create an indestructible colorless Enzyme
42 artifact.