Automate Renforcé de Guerre Lourd Mk.2

Immutable Form. The golem is immune to any spell or effect that would alter its form.

Magic Resistance. The golem has advantage on saving throws against spells and other magical effects.

Magic Weapons. The golem's weapon attacks are magical.

Regeneration. The Automate regains 10 hit points at the start of its turn if it has at least 1 hit point.

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

Heavy Blows. The automate's slam and sword attacks deal an extra damage die if the target is large or smaller.

Multiattack. The golem makes two melee attacks.

Slam. Melee Weapon Attack: [rollable]+14 to hit, reach 5 ft., one target. Hit: 20 (3d8 + 7) bludgeoning damage, plus 5 (1d8) bludgeoning damage if the target is large or smaller.

Sword. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 23 (3d10 + 7) slashing damage, plus 6 (1d10) slashing damage if the target is large or smaller. 

Heavy Cannon (Recharge 5-6). The Automate fires its cannon at a point within 120ft that explodes in a 15ft radius sphere. Each creature in that area must make a DC 20 Dexterity saving throw, taking 22 (5d8) fire an 22(5d8) thunder damage on a failed save, or half as much damage on a successful one.

Barrier Blockade(1/day). A huge wall made of a single 40ft by 40ft flat panel 1/4th of an inch thick springs into existence 5ft infront of the Automate. This wall functions nearly identically to a wall of force with 3 notable exceptions. It can be destroyed if 150 points of damage are dealt to the wall. The spell disintegrate does not instantly destroy the wall, disintegrate still does damage as normal however. Finally, when this action is taken, and concentration is held on the barrier, the Automate's movement is reduced to 0. 

Shield. When a creature makes an attack against the wearer of the Automate's owner, the Automate grants a +2 bonus to the owner's AC if the Automate is within 5 feet of the wearer.

Reactive Barrier. When a creature makes an attack against the Automate, the Automate forms a reactive barrier, granting a +2 bonus to its ac until the end of the round.