Akemura Soga - The Last Shadow

Legendary Resistance (3/Day). If Soga fails a saving throw, he can choose to succeed instead.

Evasion of the Honeybee. If Soga is subjected to an effect that allows him to make a Dexterity saving throw to take only half damage, he instead takes no damage on a successful save, and only half damage on a failed save.

Phase 2 - Manifestation of Magatsumi. When reduced to o hit points for the first time, Soga enters Phase 2. He regain 105 Hp and His Armor Class increases to 21, Black Katana attacks deal an additional 7 (2d6) necrotic damage, and he gains Aura of Despair.

Aura of Despair. While in Phase 2, each hostile creature that starts its turn within 10 feet of Soga must succeed on a DC 17 Wisdom saving throw or become Frightened until the start of its next turn.

Abyssal Feast (Phase 2).  While in Phase 2, whenever any creature within 60 feet of Soga takes necrotic damage from any source, Soga regains hit points equal to half of the necrotic damage dealt (rounded down). This healing cannot increase Soga above his hit point maximum.

Multiattack. Soga makes three Black Katana attacks.

Black Katana.  Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 6) slashing damage plus 10 (3d6) necrotic damage. While in Phase 2, this attack deals an additional 7 (2d6) necrotic damage.

Magatsumi Sorcery: Cho (Recharge 4-6).  Soga performs a slow, transverse slash that slices through space. She performs a slash and creates a space 15 feet long and 5 feet wide that she can see up to 60 feet away. Space at that point is suddenly sliced ​​open by an invisible black-and-red butterfly slash. Every creature in the area must make a DC 17 Dexterity Saving Throw. The target takes 27 (6d8) slashing damage on a failure, or half as much on a success

Magatsumi Sorcery: Mukade (Recharge 5-6). Soga spins around and performs a lightning-fast, full-circle slash. The energy of a giant, magical centipede sweeps across all creatures within the radius of his Aura of the Shinuchi (a 30-foot radius around Piper). Every creature in the area must make a DC 17 Dexterity Saving Throw. If they fail, they take 31 (7d8) slashing damage and pushed out of the  area. If they succeed, they take half damage and knocked back 15 feet.

Magatsumi Sorcery: Kaihō (Recharge 6). Soga plunges her sword perpendicular to the floor, triggering a massive explosion of psychic energy from Magatsumi's blade. Every creature within 15 feet of Piper must make a DC 17 Constitution Saving Throw. If they fail, they take 45 (10d8) psychic damage, are knocked back 15 feet, and are stunned until the end of Piper's next turn due to the shock of the psychic energy. If they succeed, they take half damage and are not knocked or stunned.

Akemura Soga replaces all of his Recharge actions when entering phase 2.

Butterfly (Recharge 4-6, Phase 2). Shadow butterflies erupt in a 30-foot radius around Soga. Each hostile creature must make a DC 18 Dexterity saving throw, taking 40 (9d8) Necrotic damage and becoming Restrained on a failed save, or half damage on a success.

Centipede (Recharge 5-6, Phase 2).  Soga dashes in a straight line up to 60 feet. Each creature whose space he passes through must make a DC 18 Constitution saving throw. On a failure, the creature takes 35 (10d6) slashing damage and begins Bleeding, taking 3 (1d6) necrotic damage at the start of each of its turns for 3 rounds.

Dragonfly (Recharge 6, Phase 2). Soga teleports between shadows, making three Black Katana attacks against one or more creatures. A creature hit by at least one of these attacks must succeed on a DC 18 Constitution saving throw or be Stunned until the end of Soga's next turn.

Magatsumi: Hachi. Akemura soga is enveloped in a high-speed, magical bee aura and dashes/blitzes a straight line up to 30 feet toward an enemy without triggering an Opportunity Attack. Each enemy in her line of movement takes 9 (2d8) piercing damage, and the target must succeed on a DC 18 Strength Saving Throw or be knocked back 10 feet.

Perfect Parry. When hit by a melee weapon attack, Soga reduces the damage by 1d10 + 11. If the damage is reduced to 0, Soga may immediately make one Black Katana attack against the attacker.

Soga can take 3 legendary actions, choosing from the options below. Only one legendary action may be used at a time and only at the end of another creature's turn. Soga regains spent legendary actions at the start of his turn.

Shadow Slash. Soga makes one Black Katana attack.

Shadow Step. Soga uses Magatsumi: Hachi.

Magatsumi Surge (Costs 2 Actions). Soga immediately uses Butterfly, Centipede, or Dragonfly if that ability is available.