Arcane Cataclysm

Orbs of raw magic cascade down upon the ground at three different points you can see within range. Each creature in a 40-foot-radius sphere centered on each point must make a Dexterity saving throw or take 11d12 force damage on a failed save or half as much damage on a successful one.

A creature in the area of more than one arcane burst is affected only once.

The area where each orb exploded then becomes an antimagic field for 1 hour. Spells you cast ignore this effect.