Armor of Darkness

While wearing this armor, you gain a +2 bonus to AC, advantage on all stealth checks in the dark, resistance to lightning damage, and you can understand and speak Abyssal. In addition, the armor's magic weapon deals slashing and lightning damage from Stormbringer, with a +2 bonus to attack rolls and damage rolls.

Curse. Once you don this cursed armor, you can't doff it unless you are targeted by the remove curse spell or similar magic. While wearing the armor, you have advantage on attack rolls against demons and on saving throws against their spells and special abilities due to its lingering connection to Demon General Talpa Arago

Plate consists of shaped, interlocking metal plates to cover the entire body. A suit of plate includes gauntlets, heavy leather boots, a visored helmet, and thick layers of padding underneath the armor. Buckles and straps distribute the weight over the body.

Notes: Bonus: Armor Class, Language: Abyssal, Resistance: Lightning, Advantage: Stealth, Invisible, Requires attunement by Great Weapon Fighter, Damage, Combat, Warding, Cursed, Str. 15 Required, Stealth Disadvantage