Historical Rules · 1 May 2011
Rule 105.4
Official source text from the 1 May 2011 Rules release
If a player is asked to choose a color, he or she must choose one of the five colors. "Multicolored" is not a color. Neither is "colorless."
Historical Rules · 1 May 2011
Official source text from the 1 May 2011 Rules release
If a player is asked to choose a color, he or she must choose one of the five colors. "Multicolored" is not a color. Neither is "colorless."