Armband of the Stars

Designed by the Patrons of the Stars in the legendary Forges of Renner, this prosthesis is made from both Sadurr metal and a star fragment, both of which allow the user to channel celestial energy through it. To fit this item, you must attach it to your arm at the wrist, elbow, or shoulder, at which point the prosthesis will magically form a copy of the appendage it's replacing.

While attached, the prosthetic provides these benefits:

• The prosthetic is a fully capable part of your body.
• You can take an action to remove the prosthetic, and it removes itself if your attunement to it ends. It can’t be removed against your will.

Also, 3 times per long rest, you can choose to do one of the following with the protesthetic:

• Reach to the Stars. You reshape the celestial energy to extend your arm up to 50 feet; in this extended state, the arm appears solid enough to be used as a bridge to cross large gaps.
• Celestial Arc. Emanating from the attachment point, a beam of celestial energy shoots to a point of your choosing within 120 ft. Upon being struck by the arc, a creature is engulfed in celestial energy and must make a Constitution DC 15 saving throw. If the save fails, the creature takes 2d10 radiant damage; if the save succeeds, the creature takes half as much damage.
• Moon-lit Blessing. Using a small amount of celestial power, you can heal a creature by touching it; the creature is then healed by 1d10 + your Charisma modifier.

Notes: creature missing a hand or an arm