Construct of Mammon

Eternal Darkness: During night the Construct of Mammon can create a magical darkness around it in a 300ft radius that reduces any creature inside's sight to 5ft, only magical light can counteract it, the Construct of Mammon gains advantage on any attack rolls against a creature in the darkness that is not in a magical light source

Blood Sacrifice: using an action the Construct of Mammon expends 15hp by tearing off a piece of flesh, the chunk of flesh after 1 action turns into a Sorrowsworn of the desired type of the Construct of Mammon that follows its command

Action Melee Attack. 

Claw: Reach 15 ft., 2 target, 4d8 Slashing +2 Acid

Bite: Reach 5ft, 4d12 Piercing +4 Acid

Action Ranged Attack. 

Venom Harpoon: Reach 30ft, 3d6 Piercing +1d6 Acid for the next 4 turns unless healed

Minion Launch: Reach 40ft, Throws a nearby Sorrowsworn of any type if present, the Sorrowsworn gets an opportunity attack on the opponent thrown at and the opponent gets disadvantage on a dodge roll

Grapple: Make a Strength check to Grapple any creature within 20ft, this reduces the creatures speed to 0 and they can't benefit from any speed related bonuses.

Maul: The Construct of Mammon attempts to maul any grappled creature giving the creatures in a 5ft radius an opportunity attack to stop it, if they fail the grappled creature takes 6d12 force +2d12 piercing damage, if the creature gets knocked unconscious or dies by this attack the Construct of Mammon will consume it gaining the amount of hp equal the the consumed creatures maximum hp.

Natural Shield: The Construct of Mammon wraps its arms and legs around its body and heads giving it advantage against constitution saving throws against attacks and it gets a +5 to its AC, it gets disadvantage on dexterity rolls, lasts until its next turn.

Forceful Leap: After an opponent fails a melee attack or it gets dodged the Construct of Mammon can choose to jump half of its walking speed in any direction knocking any living creature in a 10ft radius 5ft backwards knocking them prone,  Any grappled creatures at this time upon impact will take 3d6 bludgeoning damage.

Dodge: Make a Dexterity saving throw against the opponents attack roll, if successful the Construct of Mammon takes no damage and gets an Opportunity Attack. If it fails the opponent succeeds on the hit.

Opportunity Attack: After Dodging an opponents attack the Construct of Mammon has an opportunity attack where it can roll for a Forceful Leap, Claw, or Bite Attack.

Deathly Stare: The Construct of Mammon looks you in the eyes locking you into a state of paralysis dealing 2d8 psychic damage each turn,  the paralysis can be stopped if the Construct of Mammon takes 20 damage during this action.

Devour: The Construct of Mammon will grapple and consume any one unconscious or dead corpse of any type gaining the amount of hp equal the consumed creatures maximum hp, if this exceeds the maximum hp of the Construct of Mammon it will gain temporary hp equal to the amount exceeded of its maximum.

Feed The Construct: when the Construct of Mammon has 7 heads present it can use an action to make every creature in a 200ft radius make a wisdom saving throw DC 18 or it will unwillingly walk towards the Construct of Mammon making wisdom saving throws every minute, when it gets within 5ft it will sit and wait giving the Construct of Mammon the ability to use it Legendary action Devour on it.