Metamorphosis
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
Add X mana of any one color, where X is 1 plus the sacrificed creature's converted mana cost. Spend this mana only to cast creature spells.
Illustrated by
Arabian Nights#51CommonEnglishLegality
Rulings
Oct 4, 2004
This mana may be used on additional costs to cast the spell, such as Kicker.
Apr 15, 2013
You must sacrifice exactly one creature to cast this spell; you cannot cast it without sacrificing a creature, and you cannot sacrifice additional creatures.
Apr 15, 2013
Players can only respond once this spell has been cast and all its costs have been paid. No one can try to destroy the creature you sacrificed to prevent you from casting this spell.