Chaos Executor

You'll be useful somewhere else. The Knight can teleport up to 50 feet to an unoccupied space. (3 charges that recharge once per day)

Not Me!  The chaos tyrant can swap with another creature it's size or larger to protect itself, this is usable once per combat.

Been a warrior far too long. Once per combat, the Knight can choose to parry a melee attack to force disadvantage on the person.

Screech of Chaos. The Knight can scream, causing 4 enemies of it's choice within 40 ft of it to have bane for the next 2 turns.

Power Fist. Melee Weapon Attack: +13 to hit, reach 5 ft., 1 target. Hit: 72 (4d12 + 30) bludgeoning damage.

Power Fist. Melee Weapon Attack: +15 to hit, reach 15 ft cone.,. Hit: 100 (12d12 + 30) slashing damage.

Hungering Autocannon. Ranged Weapon Attack: +15 to hit, range 400/1200 ft., 3 target. (3d6 + 15) Piercing damage + (3d8 +12) Necrotic Damage. [3 Shots]

Raise the Banner. The Knight can use it's bonus action to raise up the banner of Chaos, granting all enemies withing 50 ft of the banner to have bless until either the banner is destroyed or they walk away from the radius. (The banner has 30 hit points.)

Opportunity Attack. When a creature walks within melee range of the Knight, if they then leave the Knight may make an opportunity attack.

Death by Explosion. When the Knight reaches 0 hit points, it will detonate, dealing 10d10 necrotic damage to all enemies within 100ft of it.