Arcane Weapon

You channel arcane energy into 1 weapon you're
holding, & choose 1 DMG type: acid, cold, fire,
lightning, poison, or thunder. Until spell ends,
deal extra 1d6 DMG of chosen type to any target
you hit with weapon. If weapon isn't magical, it
becomes magical for the duration. Bonus action:
you can change DMG type, choosing from the
options above. VS (1 hr Concentration)
At Higher Levels.
When cast at 3rd level or higher, you can
maintain concentration on it for up to 8 hrs.