Critical Pulse Shot

Charging a piece of ammunition with volatile elemental energy, you make one attack with the weapon used in the spell’s casting. The attack uses your spellcasting ability for the attack and damage rolls instead of using Dexterity. If the attack deals damage, it can be Lightning damage or the weapon’s normal damage type (your choice).

On a hit, a surge of crackling energy erupts from the target. Each creature within 5 feet of the target must succeed on a Dexterity saving throw or take Lightning damage equal to your spellcasting ability modifier (minimum of 1). A creature takes no damage on a successful save.

Cantrip Upgrade. At 5th level, the ranged attack deals an extra 1d6 Lightning damage on a hit, and the Lightning damage that each affected creature takes on a failed save increases to 1d6 + your spellcasting ability modifier. Both damage rolls increase by 1d6 at 11th level (2d6/2d6 + mod) and 17th level (3d6/3d6 + mod).