Not all unique items are created equal in Diablo 4, as the developers have purposefully elevated six of them to a tier of their own. This change in design philosophy contrasts against the direction established in Reaper of Souls, and players still remain uncertain if it's for the better or worse. The extremely rare Uniques in Diablo 4 follow in Path of Exile's footsteps, and the items that belong in this category elevate practically any build, and work for any class (even if that class can't equip the weapon type under normal circumstances).