Historical Rules · 16 July 2010
Rule 509.1e
Official source text from the 16 July 2010 Rules release
If any of the costs require mana, the defending player then has a chance to activate mana abilities (see rule 605, "Mana Abilities").
Historical Rules · 16 July 2010
Official source text from the 16 July 2010 Rules release
If any of the costs require mana, the defending player then has a chance to activate mana abilities (see rule 605, "Mana Abilities").