Discharge

You discharge a powerful burst of lightning, creating massive dome of lightning you can start from any point within range. Any creature in the dome must make a Dexterity saving throw or take 4d12 Lightning damage and be paralyzed until the start of your turn. Creatures that succeed their saving throw take half the damage and are not paralyzed.

At Higher Levels. When you cast this spell using a slot of 6th level or higher, you may deal an additional 1d12 Lightning damage for each slot level above 5th.