Burnished Gauntlet

You summon a floating, spectral gauntlet that glows in hues of molten metal that flies forth and strikes an opponent with a clenched fist.  Make a ranged spell attack against the target. On a hit, the target takes 1d10  Non Magical Bludgeoning damage. On the roll of a Critical hit the target of this attack is stunned (this effect does not stack)

At higher levels this spell creates an additional gauntlet:  two gauntlets at 5th level, three gauntlets at 11th level, and four gauntlets at 17th level. You can direct the gauntlets at the same target or at different ones. Make a separate attack roll for each beam.