Diablo II's legendary Annihilus item has made a comeback in Diablo IV's Season 15, which launched on September 15, 2026, marking the 30th anniversary of the Diablo franchise. The Annihilus, once obtained by defeating a clone of Diablo in Diablo II, is now available in Diablo IV as a unique Horadric Cube. This item offers players a 10 to 20% bonus to all statistics, 10 to 20% resistance to all elements, +5 to +10 to all skills, and 5 to 10% extra experience, along with six charm slots. The skill bonus is especially noteworthy, as no other seal or charm in the game provides such a comprehensive boost. Players have reported obtaining the Annihilus since Wednesday, September 30, according to discussions on Reddit. The item drops from a clone of Diablo, known as Uber Diablo, which can appear after the death of a world boss. The exact trigger for the clone's appearance remains unknown, though some players suggest it may be related to the recycling of Jordan's Stones, unique rings from Diablo II. In Diablo II, selling enough Jordan's Stones to merchants on the same server summoned the boss, but in Diablo IV, the stones cannot be sold. However, dataminers have found that the game tracks how many Jordan's Stones each character recycles, potentially linking the clone's appearance to this activity. The addition of the Annihilus was discovered earlier through game file searches, but Blizzard did not officially announce it. The Infernal Legacy season, which includes Season 15, features nine unique items from previous games, including the Jordan's Stone and the Crown of Léoric, but the Annihilus is not listed in the official list. The appearance of the clone of Diablo remains a matter of chance, as it does not appear every time a world boss is defeated. The return of the Annihilus has excited fans of the Diablo series, who have long cherished the game's intricate loot system and challenging gameplay. While the item's drop rate remains unpredictable, its inclusion in Diablo IV highlights the developers' commitment to honoring the franchise's legacy. Players now have the opportunity to experience one of the most iconic items in Diablo history, adding a new layer of excitement to the game's already rich world.