Dâr Narbugud/Guide: Blagh and Rung

Preparation

Although it's possible to do this fight with a single tank, two tanks provide more reliability since the damage from the two bosses can be divided between the tanks. This fight also requires a lot of healing as the bosses do a lot of damage and apply multiple high-damage ground-centered effects.

Because of the unique nature of how these bosses share damage, it is recommended that the raid members detach tooltips ('H' key by default) for both bosses before the fight starts so that they can monitor their Morale throughout the fight.

Everyone in the raid should have Hope Tokens to counteract the bosses' Gloom effect which applies +5 Dread.

Also like most bosses in this Dâr Narbugud, Blagh and Rung have a high mitigation against Common damage, and so Guardians and Wardens should use Shield-spikes to change their shield attack damage type.

Trash Mobs

Upon entering the raid you'll be in an alcove with a large room beyond. Inside the room the first bosses, Blagh and Rung are pathing around. There are also five groups of mobs consisting of:

Globsnaga Trolls (who apply acid DOTs and knockback)
Globsnaga Guards (who drop healing mushrooms and stun)
Globsnaga Skirmishers (who root from range)
Globsnaga Goblins (who apply slows)

Before engaging the bosses, the entire raid should stay in the alcove while the five groups of mobs are dealt with. The tank should pull each group one at a time (or multiple groups if the raid can handle it) into the alcove for the raid to take down, being careful not to pull the bosses (i.e. wait until they're on the other side of the room before pulling a group).

DPS priority should be in the order listed above (trolls, then guards, then skirmishers, then goblins). An easy way to remember this is to defeat them in order of their size from big to small. The trolls have frontal AOE so they should be turned away from the raid.

Boss fight: Phase 1

From start until one boss reaches 40% / 2.2M Morale

After the mobs are taken care of, the bosses Blagh and Rung can be engaged. The entire raid should enter the room together since a webbed door will close at the room's entrance when the fight starts, preventing exit from and re-entry to the boss room. Each tank should take one of the bosses and position them facing away from each other and the raid.

These bosses should be damaged such that both of their Morale stays even throughout this phase. However, Blagh and Rung share a buff called Battle Linked which causes damage done to one to be taken by the other and vice versa. This means that DPS in this phase should target the boss with less Morale, since that will in fact damage the boss with more Morale. DPS should continually switch targets and/or AOE to keep their Morale even.

During this phase the bosses will use the following abilities, neither of which is interruptible:

Stunning Knockback - knockback followed by a 7s stun on a random raid member (not the tank in this phase)
Poisoned Ground - ground-centered Acid DOT delivering high damage applied periodically under six random raid members

Boss fight: Phase 2 (burn phase)

Once one boss reaches 40% / 1.1M Morale

"You will taste of my rage for what you've done to my brother!" or
"My brother! I will make them pay for wounding you!" or
"I feel my brother's pain. Now you will feel mine!"

As soon as one of the bosses reaches ~40% Morale, the other will activate the following effect:

Enraged Revenge - Stacking damage buff applied every 20s to either Blagh or Rung that continues to stack until the other Troll is defeated, up to a maximum of ten stacks

To prevent the stacking damage buff from building too high, all DPS should target the boss with the most Morale (which will damage the other) and burn fast. DPS cooldowns should be used at this point such that one of the bosses is defeated as quickly as possible.

Boss fight: Phase 3

Once one boss is defeated

"His death will mean your death!"

As soon as one boss is defeated, the remaining boss will stop stacking the Enraged Revenge buff and will start activating the following effect:

Killing Field - large ground-centered Acid DOTs applied every 20s that last for several minutes

The tank holding the remaining boss should move the boss out of the Killing Field effect so that the raid is not affected by it. All raid members should be careful not to linger in the effect as it is very damaging. Also the remaining boss will now start using the Stunning Knockback ability on the tank.