One of World of Warcraft's deadliest entities makes a world-shattering return after nearly 20 years — and he's city-sized

World of Warcraft: The War Within's next major, "Ghosts of K'aresh", will take players on a cosmic crusade to stop the revival of Dimensius the All-Devouring.

We're halfway into the life cycle of World of Warcraft: The War Within, and Blizzard Entertainment has dropped a massive bombshell for the game's next update.

This content update, titled "Ghosts of K'aresh", promises to bring the greatest challenge for players yet, as one of World of Warcraft's oldest enemies, Dimensius the All-Devouring, will be making his grand return since 2007's World of Warcraft: The Burning Crusade, as the biggest raid boss ever seen in WoW history.

Here's everything you need to know about the Ghost of K'aresh update.

First and foremost, this update will have players explore a new zone called the Shattered World of K’aresh to stop evil forces from summoning forth Dimensius the Void Lord, an enormous monster capable of devouring entire worlds.

Operating out of the hub world of Tazavesh, the Veiled Market (returning from World of Warcraft: Shadowlands), players will gather allies, forge an upgradeable artifact called the Reshii Wraps, and fight through a new Raid dungeon called "Manaforge Omega" to confront Dimensious.

But that's not all, as the Ghosts of K'aresh update will also have players tackle a new Delve dungeon called "The Archival Assault" and a new dungeon called the "Eco-Dome Al'dani".

Additionally, players can participate in a game activity called "Phase Diving" to take on unique quests and enemies, and help cultivate a healthy ecosystem on K'aresh through the Ecological Succession sidequest.