Thunderous Bolt

You call down a small bolt of lightning on the target. Make a ranged attack against the target. On a hit, the target takes 2d12 lightning damage. Hit or miss, the bolt causes a clap of thunder. The target and each creature within 10 feet must make a Constitution saving throw. On a failed save the targets take 3d8 Thunder damage or half as much damage on a successful save.

Using a Higher-Level Spell Slot. The Thunder damage increases by 1d8 for each spell slot level above 2nd.

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