Many objects use the letter X as a placeholder for a number that needs to be determined. Some objects have abilities that define the value of X; the rest let their controller choose the value of X.
June 17, 2011 · Commander 2011
Many objects use the letter X as a placeholder for a number that needs to be determined. Some
February 4, 2011 · Mirrodin Besieged
Many objects use the letter X as a placeholder for a number that needs to be determined. Some objects have abilities that define the value of X; the rest let their controller choose the value of X.
October 1, 2010 · Scars of Mirrodin
Many objects use the letter X as a placeholder for a number that needs to be determined. Some
February 1, 2010 · Worldwake
Many objects use the letter X as a placeholder for a number that needs to be determined. Some objects have abilities that define the value of X; the rest let their controller choose the value of X.