That big red hobgoblin in goblin fort is no way to get them to leave the big chamber they are in surrounded by guards. The other two was able to eliminate the guards and get rid of drums nearby or have them meet me somewhere private and have astorian nuke em then kill before can call for help but this guy there aren't any options. Got at least 6 gobs and followers in the room and he has a truckload of health. Only way I have been able to kill him is just set a bunch of explosive barrels in room, detonate and wipe out the scrubs then attack him. I could shove him off into the abyss but then would lose any magic swag he has.