Zhar'keth the Auric Horologe

Gargantuan

Construct

CR 20

Unaligned

Zhar'keth the Auric Horologe

Ancient Golden Automaton

Zhar'keth is an immense, gleaming engine of gold and clockwork—an ancient sentinel whose single, unblinking sapphire eye burns with cold calculation. When it awakens the ground thrums with gears and the air tastes of ozone as the blue chest-crystal thrums in time with its heart. It moves with ponderous inevitability, crushing stone and breaking shields with systematic swings of polished limbs; the thing is less a creature than a judgement dispensed by brass and rune, and those who meet its gaze feel the world rearrange itself around a single immutable law.

Stat block

Armour

20

natural armor (polished gold plating)

Hit points

333

19d20+133

Speed

40ft

Challenge

20

25,000 XP

STR

20

+5

DEX

10

+0

CON

24

+7

INT

18

+4

WIS

18

+4

CHA

14

+2

Saving throws

STR +11, CON +13, INT +10

Skills

Perception +10, History +10

Resistances

bludgeoning, piercing, and slashing from nonmagical attacks

Damage immunities

poison, psychic

Condition immunities

charmed, exhaustion, frightened, poisoned

Senses

darkvision 120 ft., blindsight 60 ft., passive Perception 20

Languages

understands Common and one ancient dialect of Artifice but can't speak

Actions

Multiattack. Zhar'keth makes two Slam attacks and can make one Crystal Burst or Eye Beam attack.

Slam. Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit: 27 (4d10+5) bludgeoning damage. If the target is a creature, it must succeed on a DC 21 Strength saving throw or be pushed up to 15 feet and knocked prone as brass gears whir and grapple its limbs.

Crystal Burst. Ranged Spell Attack: +11 to hit, range 120 ft., one target. Hit: 49 (8d10+5) force damage. On a hit, the target's armor or worn item takes a -1 penalty to AC (to a minimum of 0) until repaired; multiple hits stack, and this effect lasts 1 hour per stack.

Eye Beam (Recharge 5-6). Zhar'keth fires a searing beam from its sapphire eye in a 120-foot line that is 10 feet wide. Each creature in the line must make a DC 21 Dexterity saving throw, taking 55 (10d10) radiant damage on a failed save, or half as much on a successful one. Objects and unattended structures take full damage automatically. A creature that fails the save by 5 or more is instead paralyzed until the end of its next turn as temporal feedback stuns its motion.

Temporal Anchor (Recharge 6). Zhar'keth slams the ground, creating a 30-foot-radius field centered on itself. Creatures of the automaton's choice that start their turn in the field must succeed on a DC 21 Wisdom saving throw or have their movement speed halved and suffer a -2 penalty to attack rolls and Dexterity saving throws until they leave the field. The field lasts 1 minute or until Zhar'keth dismisses it as a bonus action.

Reactions

Kinetic Parry. When a creature Zhar'keth can see attacks it with a melee attack, Zhar'keth adds +4 to its AC against that attack, potentially causing the attack to miss.

Legendary actions

The creature can take 3 legendary actions per round, choosing from the options below.

Slam. Zhar'keth makes one Slam attack.

Pulse. Zhar'keth emits a 20-foot-radius pulse of crystalline energy. Each creature in the area must succeed on a DC 21 Constitution saving throw or take 18 (4d8) force damage and be stunned until the end of its next turn; a successful save halves the damage and prevents the stun.

Clockwork Step. Zhar'keth moves up to half its speed without provoking opportunity attacks.

Lore

Zhar'keth is reputed to be one of the last remaining Horologes—colossal artifices built during the Age of Ordinance by a coalition of architects and ritualists who sought to bind time to law. The Horologes were never common; only three are known by name in surviving tomes. Zhar'keth long ago fell silent in the crater-city of Harsun Spire, its workings sealed behind wards and a chamber of blue crystal. Legends claim it once served as a judge and executioner for a theocratic cabal called the Meridian Tribunal, enforcing decrees without mercy until the Tribunal itself fractured into rival sects. Scholars such as Archivist Vorben of the Guild of Lattice have catalogued fragments of Zhar'keth's inscriptions. Vorben theorizes the chest-crystal is a condensed chronal lattice—part battery, part calendar—that both powers the automaton and records the passage of events it deems important. Raiders and treasure-hunters pry at the outer plates; cults seek to reawaken it as a weapon. The Order of Meridian, descendants of the Tribunal's legalists, both revere and deeply fear Zhar'keth: some wish to restore its judgement, others to bury it beneath molten brass forever.

Appearance

Render Zhar'keth as a gargantuan humanoid framework of beaten gold plates and interlocking brass gears. Its torso is broad and slightly elongated; plates engraved with tally marks and sigils of law overlap like the pages of a ledger. At the center of its chest sits a multifaceted blue crystal the size of a man’s torso, cut with internal facets that pulse when the construct activates. The head is helmet-like with a single, perfectly spherical azure lens set within a recessed brow; thin filigree lines radiate from the eye like clock hands. Exposed pistons, rotating cogs, and hanging chains hang in the spaces between limbs; steam vents and faint electrical arcs lick along its joints. Surface textures should vary: polished reflective panels catch light, while recessed glyphs are matte and darkened with soot. For scale, depict a human figure standing by its shin or a broken doorway barely reaching knee height. Environment hint: the ruins of a brass-clad hall, toppled pillars, and clock faces half-buried in rubble.

Made with the free LoreKeeper Monster Generator · D&D 5e-compatible stat block · Free to use at your table · Licence

More Constructs

Vespercoil Magnus
GargantuanConstructCR 20

Vespercoil Magnus

A thunderous, six-wheeled iron behemoth that prowls gaslit avenues like a living fortress, the Vespercoil Magnus blends baroque carriage work with obscene industrial machinery. Its batlike rear fins…

UnalignedForged 18 Oct 2026
Tessoron Wheelwright
HugeConstructCR 20

Tessoron Wheelwright

A hulking, chromed automaton that looks like it rolled out of a 1930s imagining of tomorrow: a single central wheel for locomotion, a bulbous torso studded with rivets, a telescoping antenna that…

Lawful NeutralForged 18 Oct 2026
Oxyrron Apparatus
GargantuanConstructCR 20

Oxyrron Apparatus

A towering synthesis of liquid metal and circuitry, the Oxyrron Apparatus moves with impossible hydraulic grace and a slow, breathing inevitability. Its limbs hinge with audible clicks of ancient…

Lawful NeutralForged 18 Oct 2026
Argos-Prime
GargantuanConstructCR 20

Argos-Prime

Argos-Prime is an ancient colossus of bronze plates and exposed clockwork—more a siege engine turned reliquary than a mind. It stands motionless for centuries in ruined plazas, a statue whose eyes…

Lawful NeutralForged 17 Oct 2026
Vorrathyx
HugeConstructCR 20

Vorrathyx

Vorrathyx is an enormous, insectile amalgam of living metal and synthetic flesh: a towering thorax of liquid chrome braided with pulsing circuitry, six jointed arms ending in razor claws, and…

neutral evilForged 17 Oct 2026
Vekthilith
GargantuanConstructCR 20

Vekthilith

Vekthilith is a towering, insectile colossus of living metal and pulsing synthetic flesh: a fusion of machine geometry and insect anatomy. Its liquid-metal carapace ripples like mercury over…

Lawful NeutralForged 17 Oct 2026

Need a nastier one?

Describe it in a sentence. Thirty seconds later it has a stat block, a story and a face.