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Dungeon - Cataclysm
Blackrock Caverns
5 encounters and 58 drops. Every drop links to its item page; tradeable drops carry a live Auction House price.
Located in Blackrock Mountain
Rumors suggest that Deathwing himself carved out the subterranean labyrinth that allows the Twilight's Hammer to secretly transport elementals from the majestic Mount Hyjal to Blackrock Mountain. A vital hub of this shadow network is Blackrock Caverns, site of the cult's blistering forge and some of its most heinous experiments, including the transformation of cultists into twilight dragonkin.
Quick Facts
| Type | Dungeon |
|---|---|
| Expansion | Cataclysm |
| Located in | Blackrock Mountain |
| Encounters | 5 |
| Drops | 58 |
| Item level | 36 to 37 |
| Tradeable drops | 0 |
| Difficulties | Normal, Heroic, 10 Player, 25 Player |
Difficulties and Lockouts
Blackrock Caverns has 2 difficulties in the game data: Heroic resets daily; Normal can be run again at any time.
| Difficulty | Players | Lockout |
|---|---|---|
| Normal | 5 | None |
| Heroic | 5 | Daily |
3D Model
First-party render from the game files. Model © Blizzard Entertainment.
Instance Map
The Adventure Guide places 5 bosses of Blackrock Caverns on 2 maps. Numbers follow the encounter order; each links to that fight below.
Blackrock Caverns
1Rom'ogg Bonecrusher- 1 Rom'ogg Bonecrusher 50.0, 70.2
Blackrock Caverns
2Corla, Herald of Twilight3Karsh Steelbender4Beauty5Ascendant Lord Obsidius- 2 Corla, Herald of Twilight 27.1, 16.3
- 3 Karsh Steelbender 47.0, 66.5
- 4 Beauty 66.5, 84.4
- 5 Ascendant Lord Obsidius 69.0, 50.8
Encounters
NNormalHHeroic10P10 Player25P25 Player
Rom'ogg Bonecrusher
One of the rare "missing link" ogres on Outland, Rom'ogg Bonecrusher piqued the Twilight's Hammer Cult's interest with his merciless treatment of the ogres. He now lords over the Chamber of Incineration, sating his hunger for inflicting torment on others.
Abilities & Strategy
Quake
Rom'ogg Bonecrusher slams the ground, cracking the earth under each player and inflicting Physical damage each second to them for 3 sec. In Heroic Difficulty, an Angered Earth creature is summoned from each ground crack.
Angered Earth
Angered Earth are summoned from Rom'ogg's Quake ability.
Chains of Woe
At 66% and 33% health remaining, Rom'ogg Bonecrusher summons a mass of chains called the Chains of Woe that pulls each player close to him and immobilizes them. Players must target and destroy the Chains of Woe to free themselves from the immobilize effect. Immediately after Rom'ogg finishes casting Chains of Woe, he begins to use his Skullcracker.
The Skullcracker
After casting Chains of Woe, Rom'ogg begins to use his Skullcracker. This incredibly powerful attack requires a long windup from Rom'ogg. In Heroic difficulty, Rom'ogg will swing after 8 seconds of windup.
Wounding Strike
Rom'ogg Bonecrusher strikes his current target, inflicting 0% of a normal melee attack's damage and reducing the healing dealt to the target by 0% for 6 sec.
Loot
10 drops · item level 36 to 37 · 5 slots (Chest, Finger, One-Hand, Shield, Wrist) · all Bind on Pickup
Corla, Herald of Twilight
Formerly an accomplished Kirin Tor mage, Corla now serves the Twilight's Hammer with unwavering devotion. She blesses fellow zealots by harnessing nether dragon essences to transform these believers into menacing twilight drakonid.
Abilities & Strategy
Evolution
Corla drains the essence of a Nether Dragon corpse and channels this essence into Twilight Zealots. The Evolution effect then rapidly stacks on the Zealot, and if the number of stacks reaches 100 then the Zealot will transform into an Evolved Twilight Zealot for the remainder of the encounter. The stacking Evolution effect lasts 15 sec. If a player moves into the beam between a Twilight Zealot and the Nether Dragon corpse, that player starts to gain the Evolution effect and begins to evolve. If the Evolution effect stacks to 100 on a player, then the player will transform into a Twilight Drakonid.
Aura of Acceleration
Corla emits an aura that accelerates nearby friendly units within 50 yards. Accelerated units have their movement speed increased by 0%, and their attack speed increased by 0%.
Dark Command
Corla issues a dark command, causing a random enemy player to flee in terror for 3 sec.
Twilight Zealot
Two Twilight Zealots are with Corla, preparing to be evolved into Twilight Drakonids. In Heroic Difficulty, there are three Twilight Zealots.
Kneeling in Supplication
Twilight Zealots kneel before Corla to prepare for their evolution. When kneeling they will perform no actions, and any damage taken is reduced by 0%.
Evolved Twilight Zealot
A Twilight Zealot that gains 100 stacks of the Evolution effect transforms into a Evolved Twilight Zealot.
Force Blast
The Evolved Twilight Zealot projects a blast of pure force at a random enemy player, inflicting Physical damage and stunning the target for 2 sec.
Gravity Strike
The Evolved Twilight Zealot strikes its current enemy target with a magically imbued attack. The strike inflicts 0% of the target's current health as Physical damage, and reduces the target's Attack Power for 8 sec.
Grievous Whirl
The attack deals Physical damage, causes the targets to bleed for an additional Physical damage every 3 seconds for 30 sec. The bleed effect is also removed if the inflicted target becomes fully healed again.
Shadow Strike
The Evolved Twilight Zealot steps through the shadows and reappears behind his current enemy target. After the Evolved Twilight Zealot reappears, he inflicts Shadow damage to his target.
Twilight Drakonid
A player that gains 100 stacks of the Evolution effect transforms into a Twilight Drakonid.
Force Blast
The Twilight Drakonid projects a blast of pure force at a random enemy player, inflicting Physical damage and stunning the target for 2 sec.
Gravity Strike
The Twilight Drakonid strikes its current enemy target with a magically imbued attack. The strike inflicts 0% of the target's current health as Physical damage, and reduces the target's Attack Power for 8 sec.
Grievous Whirl
The attack deals Physical damage, causes the targets to bleed for an additional Physical damage every 3 seconds for 30 sec. The bleed effect is also removed if the inflicted target becomes fully healed again.
Shadow Strike
The Twilight Drakonid steps through the shadows and reappears behind his current enemy target. After the Twilight Drakonid reappears, he inflicts Shadow damage to his target.
Loot
10 drops · item level 36 to 37 · 5 slots (Finger, Head, Ranged, Trinket, Wrist) · all Bind on Pickup
Karsh Steelbender
The enormous drakonid Karsh Steelbender toils in the Twilight Forge, shaping weapons of war out of rare quicksilver. Although Karsh's works are nearly unbreakable under normal circumstances, at high temperatures they become as brittle as rusted iron.
Abilities & Strategy
Quicksilver Armor
Karsh Steelbender's Quicksilver Armor reduces all damage taken by 0% when cooled.
Superheated Quicksilver Armor
When Karsh Steelbender moves under the stream of molten metal in the center of the room, his Quicksilver armor begins to heat up. This immediately removes the cooled Quicksilver Armor from him and replaces it with Superheated Quicksilver Armor. The Superheated Quicksilver Armor increases his damage taken by 0% for 17 sec. The effect continues to stack for every second he is under the molten stream. When the duration of Superheated Quicksilver Armor expires, the armor cools off and Karsh gains the Quicksilver Armor effect.
Heat Wave
Every second Karsh Steelbender is under the molten stream of metal, his armor emits a Heat Wave. This inflicts Fire damage to all nearby enemies, but the damage is further multiplied by the number of stacks of Superheated Quicksilver Armor on Karsh.
Burning Metal
When Karsh Steelbender's Quicksilver Armor is superheated, he inflicts Fire damage to his current enemy target whenever he swings his weapon at them. This damage is multiplied by the number of stacks of Superheated Quicksilver Armor on Karsh.
Cleave
Karsh Steelbender swings his glaive in a wild arc, inflicting 0% of his normal melee damage to his current melee target and two other nearby targets within melee distance of Karsh.
Lava Spout
When the duration of Superheated Quicksilver Armor expires, Karsh Steelbender's armor cools off and the excess heat causes lava spouts to erupt from the circular grate inside the room. Players standing on the grate when the lava spouts erupt take Fire damage.
Bound Flames
When the lava spouts erupt from the circular grate, three Bound Flames form and begin to attack nearby enemy players.
Loot
10 drops · item level 36 to 37 · 5 slots (Back, Legs, Neck, One-Hand, Wrist) · all Bind on Pickup
Beauty
Beauty's past is a tale as old as time, a song as old as rhyme. After Beauty's mate, Beast, was slain by heroes in Blackrock Spire, the hound and its four remaining pups joined forces with the Twilight's Hammer, intent on punishing the creatures who killed its mate.
Abilities & Strategy
Berserker Charge
Beauty charges at the farthest away enemy target, inflicting Physical damage and knocking the target back.
Flamebreak
Beauty inflicts Fire damage to all nearby enemies within 10 yards and knocks them back.
Terrifying Roar
Beauty roars, causing all nearby enemies to flee in fear for 4 sec.
Magma Spit
Beauty spits magma at a random enemy player, inflicting Fire damage and an additional Fire damage every 3 seconds for 9 sec. When the magma spit expires or is removed, four additional magma blobs are launched from the player to locations 5 yards away. When these magma blobs land, nearby players within 1.5 yards are dealt Fire damage.
Lucky, Spot, and Buster
In Heroic Difficulty, two of the three pups of Beauty will fight with Beauty. Engaging either of the two pups will cause Beauty to also attack the players.
Lava Drool
The pup's lava drool collects into a pool, and any player standing within this lava pool is dealt Fire damage every 1 seconds. The pools last 20 sec before dissipating.
Little Big Flame Breath
Beauty's pups channel a flame breath at their current enemy target for 5 sec.
Loot
10 drops · item level 36 to 37 · 5 slots (Chest, Finger, Held In Off-hand, Legs, Waist) · all Bind on Pickup
Ascendant Lord Obsidius
For his unyielding devotion and penchant for cruelty, the powerful shaman Dessirik the Depraved was gifted with ascension: a dark ritual that infused him with elemental powers, transforming him into a monstrosity known as Ascendant Lord Obsidius.
Abilities & Strategy
Transformation
When Ascendant Lord Obsidius reaches 69% and 34% of his remaining health, he will randomly target one of the Shadows of Obsidius and jump into it. This results in Obsidius and the Shadow switching places.
Stone Blow
Ascendant Lord Obsidius strikes with a strong attack, inflicting 0% of his normal melee damage and stunning his current enemy target for 1.5 sec.
Twilight Corruption
Ascendant Lord Obsidius corrupts a random enemy player, inflicting Shadow damage every 2 seconds for 12 sec.
Thunderclap
Ascendant Lord Obsidius slams the ground, inflicting Nature damage and reducing the movement speed of nearby enemies within 10 yards by 0% for 8 sec.
Shadow of Obsidius
Ascendant Lord Obsidius fights alongside two Shadows of Obsidius. These ephemeral constructs absorb all incoming damage. In Heroic Difficulty, Ascendant Lord Obsidius will fight with three Shadows of Obsidius.
Twitchy
Shadows of Obsidius will attack the enemy who has most recently generated threat, instead of the enemy with the greatest amount of threat.
Crepuscular Veil
Shadows of Obsidius that swing at their current enemy cause all healing dealt to their target to be reduced by 0% for 4 sec. This effect stacks up to 4 times.
Loot
18 drops · item level 36 to 37 · 8 slots (Back, Hands, Head, Neck, Ranged, Shield +2 more) · all Bind on Pickup
Amber MessengerAmber Messenger
Carrier Wave PendantCarrier Wave Pendant
Clutches of Dying LightClutches of Dying Light
Crepuscular ShieldCrepuscular Shield
Kyrstel MantleKyrstel Mantle
Raz's PauldronsRaz's Pauldrons
Twitching ShadowsTwitching Shadows
Willowy CrownWillowy Crown
Witching HourglassWitching HourglassAchievements
8 achievements tied to Blackrock Caverns, worth 80 achievement points in total.
Blackrock CavernsDefeat Ascendant Lord Obsidius in Blackrock Caverns.10- Heroic: Blackrock Caverns Guild RunDefeat Ascendant Lord Obsidius on Heroic difficulty while in a guild group.10
- Heroic: Blackrock CavernsDefeat Ascendant Lord Obsidius in Blackrock Caverns on Heroic Difficulty.10
- Protocol Inferno: Blackrock CavernsDefeat Ascendant Lord Obsidius in Blackrock Caverns on Heroic Difficulty while Protocol Inferno is active.10
Crushing Bones and Cracking SkullsDefeat Rom'ogg Bonecrusher after using his Skullcracker ability to kill 10 Angered Earth elementals in Blackrock Caverns on Heroic Difficulty.10
Arrested DevelopmentAllow all three of Corla's zealots to evolve, then defeat Corla after slaying the evolved zealots in Blackrock Caverns on Heroic Difficulty.10
Too Hot to HandleDefeat Karsh Steelbender after he has reached 15 stacks of Superheated Quicksilver Armor in Blackrock Caverns on Heroic Difficulty.10
Ascendant DescendingDefeat Ascendant Lord Obsidius without any party member reaching 4 stacks of Crepuscular Veil in Blackrock Caverns on Heroic Difficulty.10
More Cataclysm Dungeons
Other dungeons from the same expansion.