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Calamity of the Titans
Sorcery
rare
As an additional cost to cast this spell, reveal a colorless creature card from your hand. Exile each creature and planeswalker with mana value less than the revealed card's mana value.
Card Kingdom
CardmarketSemantic Tags
A keyword ability that reduces how much mana you need to spend to cast a spell. See rule 702.41, “Affinity.”
Creatures that tap to produce mana. Llanowar Elves, Birds of Paradise, Elvish Mystic.
A keyword that lets a creature card be cast as a mutating creature spell. See rule 702.140, “Mutate.”
Format Legality
Price history
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Printings (2)
| Set | Rarity | TCGplayer | Card Kingdom | Cardmarket |
|---|---|---|---|---|
| Commander Masters#713 | rare | · | · | · |
| Commander Masters#745 | rare | · | · | · |
Related Rules
Some keyword abilities, such as equip and modular, represent targeted activated or triggered abilities, and some keyword abilities, such as mutate, cause spells to have targets. In those cases, the phrase “target [something]” appears in the rule for that keyword ability rather than in the ability itself. (The keyword’s reminder text will often contain the word “target.”) See rule 702, “Keyword Abilities.”
If a spell has multiple instances of affinity, each of them applies.
Affinity
Affinity is a static ability that functions while the spell with affinity is on the stack. “Affinity for [text]” means “This spell costs {1} less to cast for each [text] you control.”
Mutate
Mutate appears on some creature cards. It represents a static ability that functions while the spell with mutate is on the stack. “Mutate [cost]” means “You may pay [cost] rather than pay this spell’s mana cost. If you do, it becomes a mutating creature spell and targets a non-Human creature with the same owner as this spell.” Casting a spell using its mutate ability follows the rules for paying alternative costs (see 601.2b and 601.2f–h).
One keyword causes an object to merge with a permanent. See rule 702.140, “Mutate.”
Rulings
The colorless creature card you reveal doesn't have to still be in your hand as Calamity of the Titans resolves. If it's not, use its mana value as it last existed in your hand.
The colorless creature card stays revealed until Calamity of the Titans leaves the stack.