For the Dungeon of Dagon instance, have the braziers in front of every new room light up when you’ve killed the mobs inside.
Also, can we please swim faster? 
So the braziers would work as an affirmation feature to tell when every target in the room is down. If there’s a target hiding somewhere in the room, looking at the braziers would tell us that there’s at least one target to take down.
Sounds interesting.