Konthrogz the Obliterator

Konthrogz the Obliterator is a rare elite worldeater devourer that spawns at several locations in Korthia upon the conclusion of another Korthia vignette, including:
 * Dominated Protector, Sanctuary of Guidance
 * Malbog, Mauler's Outlook
 * Wild Worldcracker Central Korthia
 * Reliwik the Defiant, Vault of Secrets
 * Zelnithop, in the back of Gromit Hollow on the Windswept Aerie

Loot the devourer for 40x Relic Fragment, 8-14 rare-quality anima items (280-490 anima), and 5% progress for Shaping Fate. It also has a slim chance to drop the Rampaging Mauler mount and the Bound Worldeater Tendrils.

Vignette
One of the objectives of Conquering Korthia, the devourer is announced with a zone-wide emote:
 * emote

Before actually spawning, a number of Invading Mites and Invading Scavengers will pop out of the portal. Loot them for their Relic Fragments! Like the Towering Exterminator, Konthrogz will scale up to raid boss-levels of health, so bring a group!

The obliterator will patrol in the direction of Keeper's Respite if players don't engage it unless it spawns at the Vault of Secrets. Once it reaches the respite, the devourer meets its match in the Korthian Protectors guarding the entrance. They're not putting up with any of its nonsense and will unceremoniously destroy the obliterator.