Historical Rules · 3 May 2019
Rule 107.4c
Official source text from the 3 May 2019 Rules release
The colorless mana symbol {C} is used to represent one colorless mana, and also to represent a cost that can be paid only with one colorless mana.
Historical Rules · 3 May 2019
Official source text from the 3 May 2019 Rules release
The colorless mana symbol {C} is used to represent one colorless mana, and also to represent a cost that can be paid only with one colorless mana.