To obtain the Annihilus charm in Diablo 2: Resurrected, players need to defeat Uber Diablo. But before you encounter it, you need to spawn him on Hell difficulty like any vendor sells Stone of Jordan. And this method is performed while you are playing an offline single player game. If you're playing online, then you'll Buy D2 Resurrected Runes need to sell a lot of Stone of Jordans on a server...