Arm of the Winter Soldier

The Winter Soldier is a former HYDRA operative. Sustaining heavy damage, his left arm was amputated and replaced with a titanium prosthetic. Later, after his rehabilitation in Wakanda, he was outfitted with a newer, more advanced prosthesis made of Vibranium.

Passive Abilities (Titanium)
Ability Improvement: This armor piece increases one or more of your Attributes or Modifiers to a maximum of 30. Vulnerability: This armor is vulnerable to Lightning damage. Should it take more than 17 Lightning damage, the wielder must roll a 1d100 save. Above a 50, the arm is destroyed. Otherwise it is reduced to +2 AC.
 * Health Base +1, Health Modifier +2

Attack: This armor piece allows attacks to be made with it and not be classified as an Improvised Weapon. Rend Resistant: Should the artifact come in contact with a Rending-able material or weapon, the user must succeed on a Proficiency save for it not to be broken.
 * 1+Health Modifier+Proficiency Bonus

Passive Abilities (Vibranium)
Ability Improvement: This armor piece increases one or more of your Attributes or Modifiers to a maximum of 30. Attack: This armor piece allows attacks to be made with it and not be classified as an Improvised Weapon. Power Immune: The artifact is immune to all effects and powers not cast by the wielder. This doesn't extend immunity to the wielder. It cannot be broken by an opponent.
 * Health Base +1, Health Modifier +2
 * Melee, 3+Health Modifier+Proficiency Bonus Bludgeoning

Energy Absorption: The artifact generates energy equal to the damage taken by the wielder. This does not negate or lessen damage, only generates energy equal to the damage taken. This may be released in any attack as Force damage