Bounding Shield (LHB)

You throw your shield, imbuing it with magical energy. 

Make a ranged spell attack, on hit a creature takes 1d6 bludgeoning damage and must succeed on a DC 12 STR save or fall prone. 

On a successful hit If there is another hostile creature within 10ft of the first you may make another attack on that creature as the shield bounces before returning.

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