Hydaelyn

You unleash an incredible burst of aether in a 60ft. radius sphere, dealing devastating force damage to all creatures within. Those who fail a Dexterity saving throw take 20d12+10force damage, and if this reduces them to 0 hit points, they are disintegrated into fine gray dust, unable to be restored except by true resurrection or wish. Nonmagical objects and magical force creations are also disintegrated, with larger targets losing a 10-foot-cube portion.