5e SRD:Stone Golem
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Large construct, unaligned
Damage Immunities poison, psychic; bludgeoning, piercing, and slashing from nonmagical attacks that aren't adamantine
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.
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 feet 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.
Stone golems display great variety in shape and form, cut and chiseled from stone to appear as tall, impressive statues. Though most bear humanoid features, stone golems can be carved in any form the sculptor can imagine. Ancient stone golems found in sealed tombs or flanking the gates of lost cities sometimes take the forms of giant beasts.