Metamorphosis

Sorcery, G (1)
As an additional cost to play 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 play creature spells.¹
Illus. Christopher Rush

Crystal Keep Rulings Summaries

• The creature is sacrificed at the time this spell is announced. It is part of the cost. You cannot sacrifice more than one creature. [D'Angelo 1999/01/31]
• The mana generated by this spell must be used to play creatures or you take mana-burn damage. You can however split it up among multiple creature spells or add to it from other mana sources. [Arab FAQ 1994/01/05]
• You can spend the mana to pay alternate costs (like Kicker) and modified costs (like Gloom). [DeLaney 2003/01/14]
• You cannot spend any of the mana to pay unrelated costs from effects (like Power Sink and Nether Void). [DeLaney 2003/01/14]
• Extended tournaments (see Rule 803) have banned this card since 1999/10/01.
• Note - Also see Converted Mana Cost, Rule G3.29.

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