Historical Rules · 18 June 2010
Rule 202.2
Official source text from the 18 June 2010 Rules release
An object is the color or colors of the mana symbols in its mana cost, regardless of the color of its frame.
Historical Rules · 18 June 2010
Official source text from the 18 June 2010 Rules release
An object is the color or colors of the mana symbols in its mana cost, regardless of the color of its frame.