Arc Bolt

A crackling blue bolt of arcing electricity fires out from your palm. Make a ranged spell attack against the target. On a hit, the target takes 2d8 lightning damage and must make a Constitution saving throw at the start of its next turn.

On a failed save, the residual energy detonates in a static shockwave. All creatures within 5 feet of the target, including itself, must make a Dexterity saving throw or take 1d8 lightning damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage of this spell increases by 1d8 per slot level above 1st, and the range of the secondary effect increases by 5 feet for every two levels above 1st.