Discus of Light

Produces a ring of light and fires it forwards in a 30 ft. line, the ring remaining at the furthest point until the end of your next turn. Each creature in the line must make a Dexterity saving throw. A creature takes 3d6 Radiant damage on a failed save or half as much on a successful one. As a bonus action, you may recall the ring, returning in a straight line towards you. Any creature in the line must repeat the Dexterity saving throw or take the same amount of damage or half on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.