Forbidden Fusion

As an additional cost to cast this spell, exile two
or more creatures you control.
Create a creature token that has all names, colors, supertypes, types, subtypes, and abilities of
creature cards exiled while casting Forbidden
Fusion with power equal to the total power of
those cards, toughness equal to their total
toughness, and mana cost equal to their
combined mana costs. (You don't pay that cost.)