The Heavens' Burst

You fabricate a spectral hand cannon in your hand. Fire a mote of divine energy at the target within range. Make a ranged Spell attack against the target. Upon hit, target takes (1d10 + Spell casting modifier) Radiant Damage.

Additionally if target is within melee range, you can whip the target with the pistol. Make a melee Spell attack. Upon success target takes 1d4 bludgeoning damage and 1d4 radiant.

At higher levels you fire more motes of energy; two at level 5, three at level 11, four at level 17. Make a separate attack roll for each mote. Each mote can target a new target.