ArenaNet has today revealed full details on what you can expect from their fourth last Living Content update for the long-running story arc, titled Origin of Madness. As the previous teaser trailer suggested, you'll be battling it out on two fronts in this update, which includes a gigantic three-headed jungle wurm and a monstrosity of a mechanical giant.

The incessant pounding of the mysterious probes has woken up big trouble: an oversized jungle wurm with three giant heads is ravaging Bloodtide Coast! Band together with other heroes to confront and defeat the ravening threat! Be warned: this battle will challenge even the best and bravest that Tyria has to offer! Put your skills to the ultimate test in this epic encounter that will require savvy, determination, and large-scale coordination.

Scarlet’s latest masterpiece is an oversized mockery of Queen Jennah’s watchknights, a huge, twisted marionette. Seek the menace out in Lornar’s Pass, where you’ll have to coordinate attacks along five main channels and disarm the marionette before it charges and fires a lethal aethercannon. You’ll have to deal not only with the marionette itself, but with the wrath of Scarlet’s combined armies.

ArenaNet is also not wanting to disappoint those participating in the new event, offering up a handful of new rewards including a wurm-themed rifle skin, a new ring or amulet, and even special ascended armor components like the Wurmslayer’s Masque, Shoulderguard, and Warfists. New items have also made their way to the Gem Store, offering three mini Great Jungle Wurms.

You can check out just what to expect from the Origin of Madness update in the official website here, or find the official trailer below. The new Living Content has now been pushed to the live servers and is available to conquer now.