You can pay extra mana for a spell like Radiant Flames only if an external effect is imposing an additional cost to cast it. That's a handy interaction with Vryn Wingmare and the like!
…and knowing is half the battlefield
You can pay extra mana for a spell like Radiant Flames only if an external effect is imposing an additional cost to cast it. That's a handy interaction with Vryn Wingmare and the like!