For accessing the mode you'll need the Petrified Scream from a Greater Rift Guardian, showing how the new content been able to build upon itself over time D2R ladder items. In addition, trying this new mode will give you powerful rewards, meaning even the most seasoned of Diablo players could find something valuable. 

The the fact that there are veteran players to cater to by offering a new and challenging game mode, nearly 10 years after launch, is a testament to the longevity of Diablo. A game with a disastrous launch and some fundamental flaws with its fundamental design have developed into one of Blizzard's most durable and popular games. 

The future is bright for the series, thanks to Diablo 4 on the horizon and even the once-flooding Diablo Immortal starting to raise curiosity among series fans. However, if Diablo is any guide what these games will look like at launch will not be what they'll look like 10 years later. Blizzard has demonstrated it will spend the time needed to get it right and create an enduring classic, come high or low. 

"Creating difficult, fresh exciting experiences at the end of games are always on the top of the list for us, so we're happy to be keeping this game going for the long haul," the blog post says. 

In the past, the Echoing Nightmare was only available to characters of the season and required players in battle with the ever-increasing power of fallen Nephalem warriors in exchange for ever-increasing rewards buy d2r items. To get access to the Echoing Nightmare, players need to have obtained the Petrified Scream from an Greater Rift Guardian and transmute it inside Kanai's Cube in order to be able to access the Echoing Nightmare.