Storm's Wrath

Storm's Wrath deals 4 damage to each creature and each planeswalker.

Irencrag Feat

Add seven {R}. You can cast only one more spell this turn.

Monastery Swiftspear

Haste
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Doublecast

When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Cinderclasm

Kicker {R} (You may pay an additional {R} as you cast this spell.)
Cinderclasm deals 1 damage to each creature. If it was kicked, it deals 2 damage to each creature instead.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Mountain

Crackle with Power

Crackle with Power deals five times X damage to each of up to X targets.