To mark the 30th anniversary of Diablo, Diablo IV is receiving a massive update bridging both past and future. At the 'Diablo IV: What's Next' panel during BlizzCon 2026, Blizzard revealed the main content for the 'Season of Hell's Legacy'—launching September 16 at 1:30 AM KST—along with the future direction of upcoming seasons and early development details for the Amazon, a new class joining in the first half of 2027.
The Season of Hell's Legacy focuses on reliving the 30-year history of the Diablo franchise within the game. Players will once again face the Prime Evils—Diablo, Mephisto, and Baal—while figures from the past like Deckard Cain make their return to Sanctuary. In addition, players can experience 'Waking Nightmares,' which reconstructs iconic locations and battles from past entries in Diablo IV's style, alongside nostalgic Unique items.
Nightmares from 30 Years Ago Return to Sanctuary
Confronting the Prime Evils: Diablo, Baal, and Mephisto
Season of Hell's Legacy is a season that looks back on memories of previous titles to celebrate the 30th anniversary of the Diablo series. The rift in the Realm of Chaos opened during the 'Season of Death's Awakening' was only the beginning. As dark rituals and the Cult of Death grew in power, souls that fell in Sanctuary's past began to awaken once more, including Deckard Cain, one of the Diablo franchise's most iconic characters.
Returning as a soul lost in time, Deckard Cain does not fully grasp his own predicament. However, he warns that the Dark Wanderers have returned and calls upon players to save their lost souls. To do so, players must once again confront the three Prime Evils: Mephisto, Baal, and Diablo.
The three Prime Evils await players in iconic locations from past entries. Baal appears in the Worldstone Chamber, Mephisto in the Durance of Hate, and Diablo deep within the Tristram Cathedral from the original Diablo. These Prime Evils and iconic locations that have defined the franchise for the past 30 years make their return.
After dealing with the three Prime Evils, players can harbor one of their 'Spines of Evil' and become a Dark Wanderer themselves. By progressing through the reputation line tied to the chosen Spine of Evil, players gain additional abilities that harness that Prime Evil's power, altering their seasonal gameplay accordingly. However, wielding the power of a Prime Evil comes with a cost. The more players draw upon the power of the Spine of Evil, the more the corresponding Prime Evil turns its attention toward them, granting immense power while exposing them to new threats.
Recreating Diablo I Dungeons in Diablo IV
'Waking Nightmares' Recreating Iconic Moments from the Franchise
The season's core content, 'Waking Nightmares,' recreates iconic moments from past Diablo titles using Diablo IV's graphics and combat mechanics. The narrative integrates this by having players step into the nightmares of the resurrected to experience memories of the past.
Featured prominently are nightmares tied to the three Prime Evils. The nightmare associated with Baal is based on Diablo II Act V, starting from the Ancients' Way, battling the Ancients at the Arreat Summit, heading into the Worldstone Keep, and progressing through familiar gauntlets before ultimately facing Baal. Mephisto's nightmare recreates the final stretch of Diablo II Act III, beginning in Travincal, assembling Khalim's Relics, descending into the Durance of Hate, and confronting Mephisto at the end.
The largest in scale is Diablo's nightmare. Reimagining a significant portion of the original Diablo, it begins at Tristram Cathedral, passes through the Catacombs and Caves, descends into Hell, and concludes with a direct confrontation against the Dark Lord Diablo. The developers explained that rather than simply reusing old maps, every area was rebuilt from scratch with Diablo IV's visuals and combat system.
These large-scale nightmares are not one-and-done narrative experiences. Players can challenge them as harder Pinnacle Dungeons, alongside even grander Pinnacle Capstones. The development team described these as the largest and most challenging dungeons built in Diablo IV to date.
In addition, familiar bosses and monsters make a return. Waking Nightmares exist in various forms beyond the Prime Evils, drawing material from across the franchise to recreate 20 bosses and up to 25 monster types. Blood Raven, The Summoner, Nihlathak, and others return in Diablo IV form, while characters from previous titles also appear as NPCs.
Return of Iconic Items Like The Stone of Jordan
Persisting Permanently Even After the Season Ends
Iconic Unique items from Diablo's past are making a comeback. Familiar gear such as Leoric's Crown, Messerschmidt's Reaver, and The Stone of Jordan are being recreated for Diablo IV. The original item attributes and characteristics are preserved as much as possible, with adjustments made to modern systems only where stats no longer exist in the current game.
These Unique items will not disappear once the Season of Hell's Legacy ends. They will be added to both Seasonal and Eternal Realms and will remain obtainable in future seasons. A system will also be provided so that even if a weapon cannot be equipped directly, its Unique effect can still be utilized through a Talisman.
The long-requested character 'Rebirth' feature will also be added this season. Instead of having to delete an existing character to free up a character slot at the start of every new season, players will be able to convert a long-played character back into a seasonal character.
Changes will also be applied to Mythic item crafting. Rather than re-rolling items into Mythic as before, players will now complete their desired Unique item first and then directly apply the Mythic effect at the final stage. The addition of regular Unique versions of key Mythic items, which had been showcased during public testing, was withdrawn based on player feedback, opting instead to preserve the distinct prestige of existing Mythic items.
Account-Wide War Plans Progress Shared Across Alts
Aiming for New Builds and Expanding Endgame Each Season
War Plans are also being updated in response to player feedback. Accelerating improvements originally slated for a later season, progress will now be shared Realm-wide rather than per character starting in Season of Hell's Legacy. Players will no longer need to restart War Plans from scratch whenever leveling a new character, easing the burden of raising alt characters.
New Horadric Cube recipes will also be added to allow for finer gear customization. For certain gear such as Talismans, players can reset base attributes while keeping all other elements intact, while regular gear will allow base attribute values to be re-adjusted without losing established features like Greater Affixes, Enchantments, and Tempering.
Future seasons will focus even more on build diversity and expanding endgame content. By utilizing new equipment types, affixes, and Horadric Cube recipes, Blizzard aims to give players reasons to try new builds every season, while expanding War Plans into a system that allows players to customize their activity lists or incorporate broader seasonal elements.
The seasonal narratives will also interconnect. Beginning with the recent emergence of the Cult of Death and the rifts leading into the Realm of Chaos, Season of Hell's Legacy brings the awakening of the dead, gradually unveiling the true nature of events. Blizzard plans to continue the conflict with this faction across multiple seasons, crafting a long-term seasonal narrative arc.
The Amazon Joins Diablo IV
Four Combat Styles Ranging from Bows and Javelins to Valkyries
In the latter part of the panel, the new Amazon class—set to join Diablo IV in 2027—was introduced. Following the appearance of Skovos, the Amazon homeland, in 'Lord of Hatred,' players voiced strong demands to play as the Amazon, and the developers explained that this community feedback played a major role in selecting the class.
The Amazon will remain a female-only class, honoring her portrayal in Diablo II. The development team is modernizing the class to naturally fit alongside Diablo IV's roster while respecting the 25-year history and identity of the Amazon. Rather than a heavily armored warrior like the Paladin, the focus is on a skilled soldier possessing high physical capabilities and agility.
These traits directly manifest in combat. The Amazon can engage in melee, mid-range, and long-range combat, wielding not only Physical attacks but also Poison, Cold, Fire, and Lightning powers. Javelins return as the Amazon's signature weapon. Currently, four combat styles have been revealed. 'Champion' (working title) is a warrior-style build that directly faces enemies on the front lines while supporting oneself and allies. Utilizing Cold and Wind powers, it leads the charge into enemies, creating openings for allies to follow and fight.
'Skirmisher' (working title) is a reinterpretation of the Javelin Amazon. Leveraging high mobility to spot openings in enemy lines, it channels Poison and Lightning powers alongside Javelins. Reading the battlefield and adapting to its flow is central to this style. 'Ranger' (working title) specializes in long-range combat. While the bow-wielding Rogue showcases stealth and gritty combat, the Amazon plays closer to a traditional archer. Utilizing piercing arrows, magic-empowered shots, and ranged artillery, it keeps enemies from ever closing in.
Finally, 'Commander' (working title) draws upon Amazon culture. It summons Valkyries to fight alongside the Amazon on the battlefield, focusing on cooperative play with allies. As the Amazon is still in early development, the team plans to continuously refine the details of gameplay based on future player feedback.
