Adamantine Arm

This arm is made of adamantine which allows the arm to deal [roll]2d6[/roll] as an attack with this arm (unarmed strike). Any weapon wielded by this arm has a +5 to attack and damage rolls ignoring any of the user's bonuses. It also allows up to 350 pounds to be easily lifted, pushed, pulled, or otherwise. Carrying any reasonable amount of weight beyond 350 for 15 seconds will have the user make a Constitution Saving Throw   to resist dropping whatever is being held. This throw is repeated every 10 seconds afterwards.

Notes: Requires Attunement by spending at least 3 hours bonding with the arm