Diablo 4's Season 6 introduces new difficulty levels with the Vessel Of Hatred expansion, including four deadly Torment difficulty tiers. Here's all you need to

Vessel of Hatred's Tenets of Akarat are new collectibles added with the expansion that essentially replace the base game's Altars of Lilith.

Upon arriving at Akarat’s tomb, the Spiritborn shaman Eru betrays the group, revealing he made a deal with Mephisto to spare Nahantu when the Lord of Hatred returns to Sanctuary. He apologizes to the heroes and steals Mephisto’s soul stone and Akarat’s human body from his tomb before disappearing through a portal.