Metamorphosis

Sorcery, G (1)
As an additional cost to cast Metamorphosis, sacrifice a creature.

Add X mana of any one color to your mana pool, where X is one plus the sacrificed creature's converted mana cost. Spend this mana only to cast creature spells.¹
Illus. Christopher Rush

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: The creature is sacrificed at the time this spell is announced. It is part of the cost. You can't sacrifice more than one creature.
• 10/4/2004: This mana may be used on additional costs to cast the spell, such as Kicker.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (2/3)	Chronicles (Common (C3)) Arabian Nights (Common (C4))