Radiant Flames
Sorcery (CMC 3)
Converge -- Radiant Flames deals X damage to each creature, where X is the number of colors of mana spent to cast this spell.
Decks with Radiant Flames
[DMC] Dominaria United Commander #126 (R)
[BFZ] Battle for Zendikar #151 (R)
[PBFZ] Battle for Zendikar Promos #151s (R)
[PBFZ] Battle for Zendikar Promos #151 (R)
[PRM] Magic Online Promos #58277 (R)