Mana Symbol

The mana symbols are {W}, {U}, {B}, {R}, {G}, and {X}; the numerals {0}, {1}, {2}, {3}, {4}, and so on; the hybrid symbols {W/U}, {W/B}, {U/B}, {U/R}, {B/R}, {B/G}, {R/G}, {R/W}, {G/W}, and {G/U}; the monocolored hybrid symbols {2/W}, {2/U}, {2/B}, {2/R}, and {2/G}; and the snow symbol {S}. See rule 104.3. Each of the colored mana symbols represents one colored mana: {W} white, {U} blue, {B} black, {R} red, and {G} green. See rule 104.3a. Numeral symbols (such as {1}) are generic mana costs and represent an amount of mana that can be paid with any color of, or colorless, mana. See rule 104.3b. The symbol {X} represents an unspecified amount of mana; when playing a spell or activated ability with {X} in its cost, its controller decides the value of that variable. See rule 104.3c. Numeral symbols and variable symbols can also represent colorless mana if they appear in the effect of a spell or of a mana ability that reads "add [mana symbol] to your mana pool" or something similar. See rule 104.3d. The symbol {0} represents zero mana and is used as a placeholder when a spell or activated ability costs nothing to play. A spell or ability whose cost is {0} must still be played the same way as one with a cost greater than zero; it won't play itself automatically. See rule 104.3e. Each of the hybrid mana symbols represents a cost that can be paid in one of two ways, as represented by the two halves of the hybrid mana symbol. {W/U} in a cost can be paid with either white or blue mana, {W/B} white or black, {U/B} blue or black, {U/R} blue or red, {B/R} black or red, {B/G} black or green, {R/G} red or green, {R/W} red or white, {G/W} green or white, and {G/U} green or blue. A hybrid mana symbol is each of its component colors. See rule 104.3f. Each of the monocolored hybrid mana symbols represents a cost that can be paid with one mana of a specific color or two mana of any type. {2/W} can be paid with either one white mana or two mana of any type, {2/U} one blue mana or two mana of any type, {2/B} one black mana or two mana of any type, {2/R} one red mana or two mana of any type, and {2/G} one green mana or two mana of any type, See rule 104.3f. The symbol {S} represents a cost that can be paid with one mana produced by a snow permanent. See rule 104.3h.