Warforged Siegewalker

Warforged Resilience. The warforged is immune to disease and magic can’t put it to sleep.

Brute. A melee weapon deals two extra die of its damage when the siegewalker hits with it (included in the attack).

Defender. The siegewalker has three reactions per round.

Powerful Build. The siegewalker counts as a size larger when determining it's carrying capacity and the weight it can push, drag, or lift

Superior Sentinel. A creature the siegewalker hits with an opportunity attack has it's speed reduced to 0 for the rest of it's turn. Creatures provoke opportunity attacks from the siegewalker if they move while within melee, even while disengaging. If a creature attacks another creature other than the siegewalker, while within melee of it,  it can use a reaction, making a melee attack against the attacking creature.

Siege Monster. The siegewalker deals double damage to objects and structures.

Multiattack. The siegewalker makes three attacks.

Integrated Halberd, +2. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 24 (3d10 + 9) slashing damage.

Iron Fists, +2. Melee Weapon Attack: +15 to hit, reach 5 ft., one target. Hit: 21 (3d8 + 9) bludgeoning damage.

Psionic Lance. Ranged Spell Attack: +9 to hit, range 120ft., one target. Hit: 20 (4d10) force damage.

Hug of Death. The siegewalker makes a grapple attack. If the grapple succeeds, the grappled creature takes 2d8 bludgeoning damage. This bonus action can be repeated on an already grappled creature to deal the damage again.

Protection. When an attacker the warforged can see makes an attack roll against a creature within 10 feet of the warforged, the warforged can impose disadvantage on the attack roll.