Cursed Spirit, Mahito

Cursed Spirit. Cursed Spirits are  invisible. This invisibility cannot be removed in any way. All their attacks are magical. 

Cursed Sight. Curses can see invisible creatures and objects.

Soul Manipulation. Mahito may shapeshift himself into any shape he wishes. He gains a vulnerability to magical melee attacks whilst shapeshifted and loses his invulnerability to nonmagical attacks. 

Multiattack. Mahito makes two Unarmed Strike attacks. 

Unarmed Strike. Melee Attack: +7 to hit, reach 5-15 ft., 1 target. Hit: 17 (2d12) slashing, piercing or bludgeoning damage. 

Innate Technique, Idle Transfiguration. Mahito touches one creature within 5 feet of him while not shapeshifted. That creature must make a Constitution saving throw. On a failure, Mahito shapeshifts it into any shape he desires. After being transfigured, that creature must repeat the saving throw. On a failure, they die. On a success, they remain alive whilst transfigured. Only Mahito or the Greater Restoration can undo the transfiguration. 

Instead of transfiguring a soul, he may drain its life force, causing Mahito to regain hit points equal to the target's maximum hit points. This destroys the soul. 

Innate Technique, Soul Multiplicity. Mahito combines two or more Transfigured Humans, creating a Small Monstrosity. This Monstrosity does not have consciousness until Mahito uses his Body Repel Innate Technique. 

Innate Technique, Body Repel. (Recharge 6) Mahito transfigures, once again, two combined Transfigured Humans, summoning a Transfigured Soul. The Transfigured Soul can be destroyed by Mahito as a bonus action. 

Spiked Counterattack. If Mahito is it with a melee attack, he sprouts many spines from the point of impact. The attacker must make a Dexterity saving throw or take 14 (2d8) piercing damage on a failure, or half as much on a success. 

Mahito gains one legendary action at the start of combat, and regains it after the battle ends. 

Domain Expansion, Self-Embodiment of Perfection (Costs 1 Actions). Mahito expands his domain, creating a sphere 45 feet long. All creatures in this area become trapped within his domain. All creatures within his domain can be affected by Mahito's Innate Technique, Idle Transfiguration at any range. Mahito may destroy his own domain with an action. The domain has 169 hit points. It may only be damaged by a creature outside of the domain. If it is reduced to 0 hit points, the domain is destroyed, causing all of its effects to end. 

A domain is also destroyed if another domain is expanded within one's own domain. 

Curtain (Costs 1 Actions). Mahito summons a massive black sphere a mile long with where he is standing as the origin. All creatures within the curtain cannot leave, and all creatures outside of it cannot enter. The curtain is opaque, meaning it cannot be seen through either side. Mahito may dismiss his curtain with an action. A veil is dismissed if the summoner is killed or if another curtain is summoned within the original curtain.