Adamantine Plate. This suit of armor is reinforced with adamantine, one of the hardest substances in existence. While you're wearing it, any critical hit against you becomes a normal hit.

The damned soul of the Oni, Akuma, courses through these metal plates, his blood is your blood. 

Giant's Regeneration. The wearer regains 1d10 hit points at the start of its turn. 

Maul.  Akuma makes 3 claw attacks, must be in Oni form. 4/day

Claw (Oni Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) slashing damage.

Change Shape. Akuma magically polymorphs into a Small or Medium humanoid, into a Large giant, or back into its true form as a Bonus Action 2/day. Other than its size, its statistics are the same in each form. The only equipment that is transformed is his weapon, which shrinks so that it can be wielded in humanoid form. As a large creature, you deal 1 extra damage die with your weapon since it is larger as well, your carry capacity is doubled, and you can throw creatures of medium size at DM discretion. 

Innate Spellcasting. Akuma's innate spellcasting ability is Charisma (spell save DC 13). Akuma can innately cast the following spells, requiring no material components:

1/day (must choose one): [Tooltip Not Found], prayer of healing (prayer of healing is asking the Oni mother for her anointment}

Nightstalker. If this armor is worn while sleeping the payer will sleep-walk and attack (until death) a random creature within the same town. Upon waking the wearer will be covered in runic blood drawings all over the armor. 

The damned soul of the Black Abishai, Zloy Mau Dau, permeates this adamantine hide, his skin is your skin.

Damage Resistances. bludgeoning, piercing, and slashing from nonmagical attacks that aren't silvered. 

Damage Immunities. acid, fire

Damage Vulnerabilities. Radiant, cold.

Shadow Stealth. While in dim light or darkness, Zloy Mau Dau can take the Hide action as a bonus action 5/day and at advantage.

Innate Spellcasting. Zloy's innate spellcasting ability is Wisdom (spell save DC 13). Zloy can innately cast the following spells, requiring no material components:

3/day: darkness

Magic Weapons. All weapons wielded by Zloy Mau Dau are considered magical. They also glow red hot and deal an extra 1d8 fire damage. 

Wandering Soul. If the armor is left unworn for a period longer than 2 hours, it will animate and walk up to 1d4 miles. If the armor is kept in a locked chamber or chest it will attempt to escape with all of its might. 

 

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: Immunity: Critical Hits, Immunity: Acid, Immunity: Fire, Resistance: Bludgeoning, Piercing, and Slashing from Nonmagical Attacks, Vulnerability: Radiant, Vulnerability: Cold, The wielder must bathe in youthful blood and continue to wear the armor for 24 hours. Then, the armor must be removed. The armor will animate, and the wielder must best the animated armor in combat to exert control over its power. , Combat, Warding, Str. 15 Required, Stealth Disadvantage