Blighted Human (Advanced Form)

Blighted Touch: Any creature hit by the Blighted Human's attack must make a Constitution saving throw (DC 14) or take 3d10 necrotic damage and become cursed with Blighted Terrain.

Blighted Terrain: The Blighted Human can leave behind a trail of Blighted Terrain. Any creature that ends their turn in this terrain must make a Constitution saving throw (DC 14) or take 3d10 necrotic damage. 

Twisted Form: The Blighted Human's twisted form grants it advantage on Strength (Athletics) checks.

Regeneration: The Blighted Human regains 2 hit points at the start of each of its turns.

Blighted Aura (2/day): As an action, the Blighted Human can unleash a wave of dark energy, affecting all creatures within 10 feet of it. Each creature must make a Constitution saving throw (DC 14) or take 2d10 necrotic damage. Additionally, the target's maximum hit points are reduced by an amount equal to the damage taken until the end of their next long rest.

Disease Immunity: The Blighted Human is immune to disease.

Spellcasting. 

Spellcasting Ability: Intelligence (Spell save DC 13, +5 to hit with spell attacks)

Spell Slots: 4th level (4 slots)

Spells Known:

Cantrips: Poison Spray, Toll the Dead

1st-level Spells: Blight, Inflict Wounds

2nd-level Spells: Phantasmal Killer, Web

3rd-level Spells: Animate Dead, Contagion

Action Melee Attack. 

Multiattack: The Blighted Human makes two attacks: 

Blighted Claws: Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8+4) slashing damage. On a hit, the target must make a Constitution saving throw (DC 13) or take 2d6 poison damage. On a critical hit, the target takes an additional 2d6 necrotic damage.

Bite: Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10+4) piercing damage.

Special Action:

Mind Control (1/day):

The Blighted Human can target one humanoid within 30 feet of it. The target must succeed on a DC 13 Wisdom saving throw or be charmed until the end of the Blighted Human's next turn. The charmed target is under the Blighted Human's control and will take actions to harm others as directed by the Blighted Human. *

Blighted Siren's Song: The Blighted Human can emit a haunting, otherworldly wail as a bonus action. Any creature within 30 feet of it that can hear the wail must succeed on a Wisdom saving throw (DC 14) or be charmed for 1 minute. A charmed creature is incapacitated and believes the Blighted Human is a benevolent entity. The charmed creature will attempt to drink from any nearby pools of Blight, which will cause them to become corrupted and serve the Blighted Human.