Ahead of Elden Ring: Shadow of the Erdtree's release on June 21, developer FromSoftware has announced the DLC will be adding new difficulty modes for players to check out. The catch here, however, is that difficulty cannot be changed once it's selected from the main menu. Anyone wanting to face Elden Ring: Shadow of the Erdtree's Messmer on a new difficulty will be forced to start a new game and get to the point that they can start the DLC.