whilst attuned to this prosthetic you recieve a +2 bonus on your Strength score. Additionally, any unarmed strikes you make with this arm also recieve a +2 bonus on the damage roll.
Fireproof:
you recieve no damage whenever you hold something with this arm that would otherwise deal fire or cold damage
Blistering grip:
once per day you can cast heat metal(3rd level) on the hand of this arm and lasts for 1 minute.
Bonding Process:
To bond to this arm, it requires you to have an amputated arm (either at the elbow or upper arm) to function. The arm will not function if it is attached in anyother way