name: Metamorphosis
originalText: Sacrifice a creature of yours in play for an amount of mana equal to its casting cost plus 1. This mana can be of any one color, and can only be used to summon creatures.
printings: ARN, BCHR, CHR, PZ2, RIN
text: As an additional cost to cast this spell, sacrifice a creature.\nAdd X mana of any one color, where X is 1 plus the sacrificed creature's mana value. Spend this mana only to cast creature spells.