The Descent into Avernus, Part 4 Title update for Idle Champions of the Forgotten Realms has 4 achievements.
Head into the wasteland of Avernus, but you have to get off the floating city first!
Head into the wasteland of Avernus with the Champions least likely to fall off the chain!
Head into Lulu's memories to discern the location of the Sword of Zariel!
Head into Lulu's memories without the aid of a short rest!