Grim Dawn: Definitive Edition

The Avatar of Mogdrogen is a Unique Boss creature located in the Asterkarn Valley. In order to make him appear, the player must first complete the Rhowari Legacy quest. This quest is given by the Rover camp in the Arkovian Foothills after you reach Honored rep status with the Rovers.

In order to fight him, you have to choose specific dialogue options. Choose these options:

• Can I ask you some questions?

• If you are a God, then why did you allow the Grim Dawn to happen?

• Perhaps you are not as powerful as I thought.

• Nobody talks to me that way.

• God or not, you die! (Misguidedly attack)

Be warned, this fight can be super hard. Even on Normal his lowest possible level is 71. He is a summoner who keeps spawning adds and he has a huge HP pool. I ran this with a level 100 character with endgame gear on Normal so it was a breeze. Just be prepared.

Here's a visual guide of the fight:
Here's the Wiki with even more detailed information: https://grimdawn.fandom.com/wiki/Avatar_of_Mogdrogen