Historical Rules · 20 January 2017
Rule 117.7f
Official source text from the 20 January 2017 Rules release
If a cost is reduced by an amount of mana represented by a Phyrexian mana symbol, the cost is reduced by one mana of that symbol’s color.
Historical Rules · 20 January 2017
Official source text from the 20 January 2017 Rules release
If a cost is reduced by an amount of mana represented by a Phyrexian mana symbol, the cost is reduced by one mana of that symbol’s color.