Z, Biomancer's Apotheosis

As an additional cost to cast Z, Biomancer's Apotheosis, pay {g/u} for each nontoken creature
on the battlefield.
Z's power is equal to the total power of all
other nontoken creatures on the battlefield.
Z's toughness is equal to the total toughness of
all other nontoken creatures on the battlefield.
Z has all creature types and keyword abilities of
all creatures you control.