Dazzling Force

Your body radiates with the power of the Sun, a charged blast of light dazzles enemies in all directions. 
Each creature within a 10-foot-radius sphere centered on you must make a Constitution saving throw.
On a failed save it takes 2d8 radiant damage, and is pushed back 1 square. 
On a successful save it takes half damage. 

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.