Beast 3 "Warmonger"

Undead Crusade. This creature is able to summon a death knight to his side each turn as a bonus action, and any undead within a 200 ft radius of him automatically turn to his command.

Shadow form. He is a literal shadow. He cannot be grappled. He is vulnerable to sunlight however wherever he walks, a thunderstorm follows.

Curse of Insanity. He has a curse that strengthens his physical attributes but weakens his mental self, as such he cannot speak proper sentences.

Cold aura. He is surrounded by a cold aura that deals 1d10 points of cold damage to anyone that makes a melee attack against him.

Embodiment of War. He can copy any melee or ranged attack that is not magic related if he feels like doing it. He cannot be disarmed. When he sees an enemy he knows where they are no matter what circumstances if he marks them. When he is around his army they all gain advantage on any attacks they make.

Multi attack. Can make three Greatsword attacks and then a shield Bash. Or you can make one Str Drain attempt or attempt a shadow slice..

Greatsword of the murdering General (artifact). Melee Attack: +20 to hit, reach 5 ft., single target. Hit:  19 (2d6 + 13) [slashing] damage + 9(3d6) [necrotic] damage. (Crit on a 17-20).

Shield Bash. Melee Attack: +20  to hit, reach 5 ft. Contested str checks, if you beat the enemy then they are knocked back 10 ft and proned. On hit: 5(1d10) [bludgeoning] damage.

Strength Drain. (must have grappled enemy) Enemy must roll a strength saving throw of 17+ or lose 1d6 strength from their score. If they succeed the check they lose half the amount and if they lose 1 and succeed they take 0 damage.

Shadow Slice.   Melee attack: +20 to hit. Range: 150ft. You send a slash of your sword out and a shadow appears next to an enemy within 150ft of you, itwill teleport if necessary. On hit:  Hit:  19 (2d6 + 13) [slashing] damage + 18(6d6) [necrotic] damage. (Crit on a 19 or 20.) (If it hits a flying enemy they instantly lose focus on the fly spell if they were the caster, otherwise they are no longer effected by it.)