Varrux the Ironmantle

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

Carved into the annals of the northern forges, Varrux predates the current kingdoms. Old charters recorded it as the 'Mantle of the Foundry', a colossal ward fashioned by the guild-masters of Harn when the first iron veins were bled into roads and rails. As the forges of Harn fell from a hundred bloody changes of rule, Varrux wandered the slag flats and ruinous workshops, slowly learning to mend itself with whatever it found. It is said that Varrux will defend great centers of metal and fire — ancient vaults, volcano-carved forges, or the last standing bellows of a dead god — with implacable guardianship. Scholars such as Ildem Veyne of the Empirical Collegium have argued that Varrux was not designed for slaughter but for stewardship: its memory banks catalogue ore seams, smithing techniques, and ancestral oaths. Folk tales from miners' encampments claim that Varrux can be bargained with by offering a technique lost to time or a tool made with a heart-iron rune. The Blackchain Cartel, however, has tried and failed to break it, and the ruin called the Crowned Anchor still bears the dents of their ironclad engines. Where Varrux journeys, new forges and iron-born life spring up — and then, if it judges them corrupt, are ground into scrap to feed its ever-burning hearth.

A hulking framework of overlapping iron plates riveted with huge square-headed bolts; each plate is pitted and heat-stained, seams welded with filigrees of old guild sigils. Its torso is a domed furnace with a slit like an eye that glows molten orange; a lattice of pipes and steam valves crowns its shoulders and chest. Limbs are composed of articulated pistons and geared segments, cables like tendon-bands, and oversized knuckles that scar stone when closed. Exposed cogs and a visible chain-drive run along the spine; small waste vents belch sparks. Scales of flaking black soot and streaks of oxidized green suggest centuries of weathering. Scale reference: when standing, the top of a human's head reaches roughly the midpoint of Varrux's forearm; Varrux can stride through a city gate with only its shoulders brushing the lintel. Artists should render heavy texture — crosshatched pitting, rivet shadows, and oily streaks — with pen strokes suggesting weighty mass and metallic sheen.