Even veteran Diablo 2 players got caught off guard by Reign of the Warlock. For years, D2R felt settled. Same classes, same routes, same farming habits. Then Blizzard dropped an expansion that actually changes how people play, and not in some tiny balance-note way. The new Warlock alone has people rebuilding stashes, testing weird setups, and browsing the diablo 2 resurrected items market just...