You can find the Vault of the Wardens dungeon entrance within Azsuna, The Broken Isles.
The coordinates are (47.7, 82.7)
The group needs to follow the player with the light, stay close to tank and kill mobs along the way.
1. Tirathon Saltheril
/i Tank use active mitigation while Darkstrikes is active. Avoid green patches on ground. 50% boss transforms into a demonic form. Vengeance Form: Avoid rotating Glaives on green chain. Move away from green swirls. Havoc Form: Avoid the green eye beam.
2. Inquisitor Tormentorum
Heroic/Mythic Differences: Tormenting Orbs cast Inquisitive Stare (pink beam), face them to avoid the disorient.
Mythic Only: Sap Soul can not be interrupted. Use an ability that you won’t need during the fight to get rid of debuff.
/i Avoid orbs flying around room (bounce back when hit a wall). Lingering Gaze cast on a player, move out of blue pool. When becomes immune casts a rotating blue beam & statues appear. Players rotate the statues to reflect the beam back at the boss.
Heroic/Mythic Differences: The orbs flying around room (Pulses) will split into smaller ones if they hit a player.
Mythic Only: Find & kill the hostile Statue (Overloaded Lens) before the beam hits it.
/i Avoid the moving lava patches on ground. Green fire line (Fissure) rotates around room. Spawns Volcanos that release Ember adds, focus kill before they absorb lava. Activate Countermeasures (statue) to freeze entire room, nuke boss when Brittle.
5. Cordana Felsong
/i Kicks back tank, dont face edge. Use Light to clear purple pools. Dodge the green Detonating Moonglaives. When boss is protected in bubble throw the Light in corners of room to reveal the Avatar of Vengeance add. Boss is immune until add is killed.
Heroic/Mythic Differences: A wall of spirits (Creeping Doom) will move across platform, use the light to reveal the gap & run through.
Mythic Only: Wall of spirits (Creeping Doom) will spawn more walls, you must be quick to find the gaps as they overlap.