Historical Rules · 27 September 2013
Rule 202.2
Official source text from the 27 September 2013 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 · 27 September 2013
Official source text from the 27 September 2013 Rules release
An object is the color or colors of the mana symbols in its mana cost, regardless of the color of its frame.