One of these interactions relates to how you actually pay a hybrid mana cost. As you start to cast a spell with hybrid mana (like Boros Reckoner), you need to pick how you’ll pay for each of the hybrid mana symbols. That choice is then taken into consideration when you look for other effects that care about the mana cost of your spells…like Ragemonger!
If you have multiple Ragemongers, the discount will “stack”. If you have three Ragemongers, you can cast Boros Reckoner for free! Bring on the horde!
(Even if you only spend red mana to cast Boros Reckoner, it’s always a red-and-white spell for anything that cares about that, like an opponent’s Soldier of the Pantheon.)
Today’s Rules Tip Written by Paul Baranay