Monster Fusion

You may exile two Angel, Demon, Human, and/or Prinny creatures from the battlefield that you control. Put a token creature on to the battlefield that are all types of the exiled creatures with power and tough X/Y where X is the sum of the exiled monsters power and Y is the sum of the exiled monsters Toughness. If the token were to be removed from the battlefield, return the exiled creatures to your hand. Only use this whenever you could cast a sorcery.