Arm of the Fire Genasi Veteran

Renewed Strength: Whilst attuned to this prosthetic, you receive a +2 bonus on your Strength score, to a maximum of 20. Additionally, any unarmed strikes you make with this arm also receive a +2 bonus to attack rolls and damage.

Fireproof: You take no damage whenever you touch or hold something with this arm that would otherwise deal fire or cold damage.

Blistering Grip: Once per long rest, you can cast heat metal at 3rd level on the hand of this arm with a DC of 16. This requires no concentration and lasts for 1 minute.

Bonding Process: To bond to this arm, you must be missing an arm, either at the elbow or upper arm. The arm will not attune or function if it is attached any other way.

CREDIT: Tim (@bonus_action)

Notes: Bonus: Strength Score, Bonus: Unarmed Attacks, Damage: Unarmed Attacks, creature with an amputated arm