Fire Absorption. Whenever the golem is subjected to fire damage, it takes no damage and instead regains a number of hit points equal to the fire damage dealt.

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.

Heated body. A creature that touches the construct or hits it with a melee attack while within 5 feet of it takes 1d10 fire damage.

Multiattack. The golem makes two melee attacks.

Slam. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 20 (3d8 + 7) bludgeoning damage.

Sword. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 23 (3d10 + 7) slashing damage.

self destruct. if the golem has 10 hit points remaining it can self destruct causing every creature in a 15 foot radius to take 2d10 fire damage, 3d6 acid damage, 2d4 lightning damage and 1d4 thunder damage then the golem dies.