Blade of Moonlight

Gathering moonlight in your hand with a short incantation, a silvery translucent blade extends from your grasp. You swing the sword cutting through the air, creating  a rippling ark of moonlight that explodes out in a 60ft cone, the sword then dissipates.

Any creature caught in the wake of moonlight suffers scorching pain and must make a constitution saving throw. It takes 5d10 radiant damage on a failed save, or half as much damage on a successful one. 

Fiends and un-dead take double damage, and shapechangers makes the save at disadvantage. If it fails, it also instantly reverts to its original form.

At Higher Levels. When you cast this spell using a spell slot of 6th or higher, the damage increases by 1d10 for each spell slot above 5th.