Actions

Multiattack. You can make four claw attacks, or fire 4 Malicebolts.

Frightening Presence. At the beginning of combat, when you first transform, each creature that is aware of you must make a DC 19 wisdom saving throw or become frightened of you. A creature frightened this way must spend its entire turn running as far away from you as possible, and it can't willingly approach you. At the end of its last action phase (the action phase when it as used all its actions) the creature can repeat the saving throw, ending this effect on a save. Once a creature saves, it cannot be frightened in this way for 24 hours.

Claw. Hit: +12, damage 2d6+6 slashing damage, 1d6 necrotic damage. On a hit, they must make a DC 19 constitution saving throw or gain one level of taint

  Malicebolt. Hit+11, damage 2d8+5 necrotic damage.

  Black Lightning Discharge (recharge 4-6). As an action, you can discharge black lightning in a 20ft radius sphere centered on you. Each creature affected must make a DC 19 Dexterity saving throw or take 4d6 lightning damage + 4d6 necrotic damage. On a success they take half damage. On a hit, they must make a DC 19 constitution saving throw or gain one level of taint.

Koku Oohamaru(Recharge 5-6). You fire a large dark Maho Hamaru up 60ft from you. Each creature within 20ft of that point must make a DC 19 Dexterity saving throw or take 10d8 necrotic damage. On a success they take half damage. Additionally, any creature hit must make a DC 19 Constitution saving throw or gain one level of taint.

Black Lightning Bolt(recharge 5-6). As an action you can exhale a break of black lightning in a line up to 60ft. Each creature affected must make a DC 19 Dexterity saving throw or take 4d6 lightning damage + 4d6 necrotic damage. On a success they take half damage. On a hit, they must make a DC 19 constitution saving throw or gain one level of taint.

Villain Actions

Round 1: Spiteful Pursuit. You can move up to your speed. This movement does not provoke attack of opportunity.

Round 2: Malicious Energy. You gather release dark energy, increasing your power as it coats you in a dark lightning aura for 1 minute. For the duration of this ability, all your attacks deal an extra 1d6 lightning damage, and your Black Lightning Vengeance ability deals an extra d8 lightning damage. As you finish charging, red lightning explodes in a 10-foot radius around you. Each creature in the area must make a DC 19 Strength saving throw, taking 38 (11d6) lightning damage, and be pushed back 10 feet on a failed saving throw or half as much damage and isn't knocked prone on a successful one.

Round 3: Black Lightning Flash Cry. You unleash a blood-chilling howl, as a force field of red lightning and taint explodes outward from you. Each creature within a 20ft radius of you must make a DC 19 Dexterity saving throw or take 4d6 lightning damage + 4d6 necrotic damage. On a success they take half damage. On a hit, they must make a DC 19 constitution saving throw or gain one level of taint.

Reactions

You can take two reactions in one round.

Vengeful Retaliation. If a creature within melee range misses you, you can make one claw attack at it.

Spiteful Pursuit. If a creature moves away from you, you can use your reaction to move up to half your speed.