Generic mana is a mana cost that can be with mana of any type.
A generic mana cost is represented by a number in a gray circle (, , , , , and so on). Any color of mana, as well as colorless mana, may be used to pay a generic mana cost.
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, and so on). Any color of mana, as well as colorless mana, may be used to pay a generic mana cost.