Aethlegard the Arcanum Titan

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

Aethlegard was wrought in the age when mortal arcanists and artificers pooled their knowledge to construct guardians for the sky-archives of the lost city of Prethos. Its frame was hammered from meteoric silver and alloyed with gilded copper; blue star-jewels were grafted to its core as both power reservoirs and seals for spells inscribed into its chassis. When Prethos fell—torn apart by a schism of spellwork and ambition—Aethlegard remained active, its orders corrupted and refined by centuries of stray magic. Ruins hunters tell of the Titan opening sealed vaults and defending them not for treasure but for the preservation of certain grim codices. Scholars argue over Aethlegard's purpose. The Conservatory of Kestilan calls it the Last Archivist and sends cautious envoys with oaths and offerings; the rune-hunter faction known as the Sundered Quills seeks to tear its jewels free. Several surviving treatises by Master-artificer Hadrus Mehlmark claim a failsafe code—'The Canticle of Return'—was meant to restore the Titan's primary directive. Few have found the Titan unhostile; more tell of ruined battalions and singed libraries. Among mountain villages, tavern-oversalt tales say the Titan sometimes wanders to ancient battlefields and reads aloud thunderous canticles that shake the very ground.

Aethlegard is a towering gargantuan construct standing roughly 35 feet tall. Its chassis is broad-shouldered, composed of overlapping silver plates rimmed with gold filigree; the plating is abrasion-scarred and etched with tiny arcane sigils that faintly glow when it channels magic. Large oblong blue jewels are inset on each shoulder, at the center of its chest and on the outer faces of its forearms; thin veins of luminescent conduit run from these jewels into the joints and scepter socket. Where a loincloth would be, heavy articulated metal plates hang like a ceremonial apron with hammered ornamentation. Its head sits on a short armored neck and sports an alien facial plate with four slitted ocular lenses arranged in a diamond—two stacked above two—each lens burning steady sapphire light. The scepter is nearly as tall as a human, wrought from the same metals, topped by a cage enclosing a rotating crystal and bound runes; a strapped spellbook—age-darkened leather with metal clasps—retracts into a compartment at the Titan's chest. Surface textures combine polished metal, burnished filigree, and faint scorch marks; joints are thick and riveted, with steam-like curling vapors escaping from regulator vents.