This new collab sees two of Blizzard’s most popular franchises collide, complete with new boss fights, familiar skins, and various crossover rewards. For many players, the highlight of this crossover is the new Legendary Gem, Baneboil, which detonates enemy lines in corrosive explosions. There’s also the new Phantom Market that lets players become the Queen of Blades, Kerrigan. Players can also challenge Tal’Darim Templar and Ascended Archon units in a limited‑time boss fight. Here, up to four players can join and complete event‑specific objectives to earn exclusive rewards. Plus, Elder Rifts can mutate during the Aeon of Stars, infesting them with Zerg forces, along with the Feral Hydralisk boss. By completing these rifts, players will be able to earn Legendary weapons with special affixes. This new crossover also adds a Special Conqueror Mode, featuring faction‑themed shrines inspired by Starcraft.