Journey through never-before-seen subterranean worlds filled with hidden wonders and lurking perils, down to the dark depths of the nerubian empire, where the malicious Harbinger of the Void is gathering arachnid forces to bring Azeroth to its knees. Deep beneath the surface lies treasure vaults waiting to be discovered with Delves. Explore these world instances solo or with up to four friends, along with an NPC companion, to defeat bosses and gain epic end-game loot. Expand the potential of your alternate characters with account-wide progression across your family of characters on your Battle.net account with Warbands. Share your Warband Bank access, War Within Renown, achievements, collections, and more. Rise to new heights of power with new Hero Talent trees. Each class specialization has access to two choices of self-contained Hero Talent trees inspired by iconic Warcraft universe archetypes.