Body Weaponry

For the duration of the spell, you transform one of your arms into any melee weapon you are proficient with that does not have the two-handed property. You can’t use that hand for anything besides attacking with that weapon, but you can’t be disarmed and it can be made of any nonmagical material (fantastical materials such as adamantine or mithral are magical for the purposes of this spell.) You may use a bonus action to end the spell early.