Cailen's Stunning Edict

Arcane projectiles emerge from the center of your palm, assaulting any creature within a 30-foot-cone. Each creature in a 30-foot cone must make a Dexterity saving throw. A creature takes 8d8 force damage on a failed save, or half as much damage on a successful one. In addition, a creature is stunned until the end of your next turn on a failed save.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.