巫術
選擇奇數或偶數。放逐所有總魔法力費用是該種數值的生物。(零是偶數。)
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.
If a creature on the battlefield has
in its mana cost, X is considered to be 0.
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.