Stormfather

Hexproof, Defender
Radiants you control get +1/+1
If your devotion to blue is at least 6, Stormfather may attack as if it didn't have defender.
{t}: Add {u}{u}. Spend this mana only to cast Radiant spells.
Pay {6}: Deal 2 damage to each Non Radiant, Non Spren Creature.