Traits

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.

Actions

Multiattack: The golem makes two slam attacks.

Slam: Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 19 (3d8 + 6) bludgeoning damage.

Slow (Recharge 5-6): The golem targets one or more creatures it can see within 10 ft. of it. Each target must make a DC 17 Wisdom saving throw against this magic. On a failed save, a target can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the target can take either an action or a bonus action on its turn, not both. These effects last for 1 minute. A target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.