You can find the Black Rook Hold dungeon entrance within Val’Sharah, The Broken Isles.
The coordinates are (38.6,51.0)
The stairs have lots of Rook Spiderlings & a Rook Spinner. On the way up tank pick up Spiderlings, then find & kill the Rook Spinner.
1. The Amalgam of Souls
/i Avoid frontal cone Reap Soul (if hit does high damage & increases damage taken by 20%). Move away from swirling weapons on ground. Soul Echoes spawns souls of a player that explode, keep moving to avoid them.
Heroic/Mythic Differences: ‘Reap Soul’ now stacks. Kill the restless souls before they reach boss. If they reach boss the damage from ‘Soul Burst’ is increased by 25%.
Mythic Only: Players damaged by ‘Soul Echoes’ are also feared for 5 sec.
2. Illysanna Ravencrest
/i Brutal Glaive dots nearby players. Tank use active mitigation for Vengeful Shear. Players with Dark Rush get charged, avoid green fire on ground. Eye Beam follows a player, kite fire around room. Focus kill adds, avoid frontal cone Bonecrushing Strike.
Heroic/Mythic Differences: Interrupt Risen Arcanists ‘Arcane Blitz’.
3. Smashspite the Hateful
/i Earthshaking Stomp does unavoidable damage to all & knocks back. Tank use active mitigation for Brutal Haymaker, will cast this at 100 Brutality. Bats focus a player, run the green vomit away from others, avoid standing in the green lines.
Heroic/Mythic Differences: On ‘Hateful Gaze’ focuses a player to charge at, hitting first player in the way. Rotate who takes the hits as once your hit you will take 100% damage from next charge, lasts 1 min.
4. Lord Kur’talos Ravencrest
/i Throws Whirling Blade at player, move away from this. Avoid purple line across floor. Unerring Shear hits tank for high damage. At 20% boss swapped with Dantalionax. Move out of green clouds on floor. Run around room to avoid the rotating purple beam.
Heroic/Mythic Differences: ‘Stinging Swarm’ spawns insects on a player, kill them quickly.