Extinction Event
Price
Sorcery
Extinction Event
Mana
Oracle text
Choose odd or even. Exile each creature with mana value of the chosen quality. (Zero is even.)
Commander : legalModern : legalPioneer : legalStandard : not legalLegacy : legalVintage : legalPauper : not legal
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Official rulings (3) · Scryfall
2020-04-17
The mana value of a token that isn't a copy of another object is 0. A token that is a copy of another object has the same mana cost as that object.
2020-04-17
If a creature on the battlefield has {X} in its mana cost, X is considered to be 0.
2020-04-17
You choose odd or even while Extinction Event is resolving. Players can't take any actions between the time you make that choice and the time some creatures go extinct.