Fractal Golem
Large Construct, unaligned
Armor Class 18 (natural armor)
Hit Points 8 (1d10+3)
Speed walk +30
Challenge 8
Skills stealth +4, survival +5, perception +2
Damage Immunities poison, psychic; bludgeoning, piercing, and slashing from nonmagical attacks not made with adamantine
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses darkvision 60 ft., passive Perception 12
Languages understands the languages of its creator but can't speak
Special Abilities
Fractalize. When the golem is reduced to 0 hp, it explodes. Each creature within 5 feet of it, except for other fractal golems, must succeed on a DC 14 Dexterity saving throw or take 4 (1d8) force damage and be pushed back 5 feet. Two duplicate fractal golems appear in the golem's space and the nearest unoccupied space, each with the same statistics as the original fractal golem, except one size smaller. When a Tiny duplicate of the golem is reduced to 0 hp, it explodes and doesn't duplicate. All duplicates act on the same initiative.
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
Slam. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (3d6 + 3) bludgeoning damage.
Source: Creature Codex · OGL/Open