Concussive Zap

You attempt to touch a piece of conductive metal to the target. A powerful electrical charge builds up in the metal and releases into the target, accompanied by a loud sizzling booming noise.

Make a melee spell attack against a creature you can reach. On a hit, the target takes 6d4 lightning damage and 2d6 thunder damage and must make a strength saving throw or be zapped backwards a number of feet based on their size (consult the chart below) and fall prone. The target may take additional bludgeoning damage if they are stopped by a solid object before traveling the total zap-back distance. If they make the save they hold their ground and are not knocked prone.

At Higher Levels. When you cast this spell using a spell slot of 4rd level or higher, the damage increases by 1d4 lightning and 1d6 thunder for each slot level above 3rd.

"Holmes, what is that?"  "Je ne sais pas..."