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!
Tag: Radiant Flames
All About Converge
Welcome back! For today’s Battle for Zendikar mechanic tip we’ll be covering Converge! Converge works very similarly to the Sunburst mechanic from Fifth Dawn- the more colors of mana you sink into the spell, the stronger it gets. For Sunburst that meant charge counters and +1/+1 counters; for Converge, it just means more of everything! […]