name: Pollywog Symbiote
originalText: Each creature spell you cast costs {1} less to cast if it has mutate.
  Whenever you cast a creature spell, if it has mutate, draw a card, then discard a card.
printings: IKO, PRM
text: Each creature spell you cast costs {1} less to cast if it has mutate.
  Whenever you cast a creature spell, if it has mutate, draw a card, then discard a card.
type: Creature — Frog