The Stonecore
Dungeon GuideRetailBoss abilities and loot tables from Blizzard's own journal, boss by boss.
Within the Temple of Earth, locked in the heart of Deepholm, lies the Stonecore. It was inside these caverns that the Twilight's Hammer toiled over Deathwing, hammering elementium plates to the Dragon Aspect's body in an attempt to hold his tormented form together. With his renewal complete, Deathwing ascended into Azeroth, shattering the World Pillar and destabilizing the region of Deepholm.
Written notes for this instance are a later milestone. Everything on this page comes from Blizzard's journal data.
- Expansion
- Cataclysm
- Minimum Level
- 1
- Modes
- Normal, Heroic, Mythic, Mythic+ Dungeons
Bosses
1. Corborus
Deathwing enslaved the massive gyreworm Corborus and drove it to unearth the vast amounts of elementium required to forge the Dragon Aspect's new plating. With Deathwing's departure, however, Corborus has broken loose and now rampages through the Stonecore in blind fury.
Abilities
- Crystal Barrage
Corborus channels a barrage of crystals on the location of a random enemy player, inflicting 0 Physical damage in a 5 yard radius around the location every 0.5 second for 4 sec.
- Dampening Wave
Corborus unleases a wave of energy, inflicting 0 Shadow damage to all enemies within 60 yards. The energy wave also inflicts each enemy with a heal absorption effect that will prevent 0 healing on the target for 6 sec.
- Burrow
After some time has passed, Corborus will burrow into the ground and become unattackable. While Corborus is underground, Rock Borers will periodically emerge from the ground at the location of a random player and begin to attack. Corborus will also violently erupt out of the ground and resubmerge four times with a Thrashing Charge. After the fourth Thrashing Charge, Corborus emerges out of the g
Loot
- Key to the Endless Chamber
- Cinnabar Shoulders
- Phosphorescent Ring
- Crystalgrinder Bracers
- Crystal-Chained Lodestone
- Crackling Geode Mace
- Fist of Pained Senses
- Dolomite Adorned Gloves
- Dolomite Adorned Gloves
- Crystal-Chained Lodestone
- Crackling Geode Mace
- Cinnabar Shoulders
- Crystalgrinder Bracers
- Phosphorescent Ring
- Fist of Pained Senses
- Key to the Endless Chamber
2. Slabhide
With his powers as the Aspect of Earth amplified by the Old Gods, Deathwing easily swayed Deepholm's stone wyrms into serving the Twilight's Hammer. One of the most ambitious of these creatures, Slabhide hopes to earn Deathwing's favor by exterminating any intruders brazen enough to enter the Stonecore.
Abilities
- Lava Fissure
Slabhide creates a crack in the ground under a random player. After 5 seconds the ground erupts, inflicting 0 Fire damage to all enemies within 5 yards of the crack's location. The eruption also creates a lava pool which inflicts 0 Fire damage every second a player stands within the pool. The lava pool lasts 10 seconds.
- Sand Blast
Slabhide breathes out a blast of sand, inflicting 0 Nature damage to all enemies within 15 yards in a forward facing 60 degree cone.
- Stalactite
Periodically during the encounter, Slabhide will run to the center of the cavern and lift off into the air. While hovering above the ground, a large number of stalactites then rain down from the ceiling in random locations around the cavern. If a player is underneath a stalactite when it lands, they take 0 Physical damage and are knocked back. The stalactites last 30 sec, and also block movement
- Crystal Storm
After Slabhide lifts off and finishes creating stalactites, he then lands. Before the stalactites disappear, he begins to channel Crystal Storm for 6 sec. Every 0.5 second Slabhide inflicts 0 Nature damage to all enemies. Slabhide must have line of sight to an enemy to deal damage with Crystal Storm.
Loot
3. Ozruk
Ozruk has served as Stonecore's guardian since Deepholm's creation. It is unknown why Ozruk has remained in the Stonecore, but it has become apparent that the guardian now believes that anyone opposed to Deathwing is a threat to Deepholm, and should therefore be destroyed.
Abilities
- Ground Slam
Ozruk builds up his strength then slams the ground in front of him dealing 0 Physical damage to all enemies within 4 yards of the impact point.
- Rupture
When Ozruk performs a Ground Slam in Heroic Difficulty, the ground ruptures and causes three lines of rock spikes to erupt in the direction he is facing. Any player caught by one of the rock spikes is dealt 0 Physical damage and is knocked upwards.
- Elementium Bulwark
The elementium plates grafted onto Ozruk are charged with energy, causing them to have a 20% chance to reflect spells for 10 sec.
- Elementium Spike Shield
Spikes erupt from Ozruk's body for 10 sec. Any player who attacks Ozruk with a melee or ranged attack while he has the Elementium Spike Shield are inflicted with a bleed effect that deals 0 Arcane damage every second for 3 sec. This effect stacks up to 5 times, but may only be applied once per second.
- Shatter
When the Elementium Spike Shield expires, Ozruk shatters the spikes and launches them in all directions. This inflicts 0 Physical damage to all enemies within 15 yards.
- Paralyze
Right before Ozruk uses his Shatter ability, Ozruk will cast Paralyze. The Paralyze spell stuns all enemies for 8 sec. Any damage taken while stunned will remove the Paralyze effect. If Paralyze is not prematurely removed, then at the end of the spell's duration the player is dealt 0 Arcane damage.
Loot
- Sword of the Bottomless Pit
- Tendrils of Burrowing Dark
- Pendant of the Lightless Grotto
- Fractured Earthstone Necklace
- Tear of Blood
- Belt of the Ringworm
- Heavy Geode Mace
- Elementium Scale Bracers
- Belt of the Ringworm
- Tendrils of Burrowing Dark
- Elementium Scale Bracers
- Pendant of the Lightless Grotto
- Sword of the Bottomless Pit
- Fractured Earthstone Necklace
4. High Priestess Azil
High Priestess Azil is one of the few who has survived communing with the Twilight's Hammer cult's eldritch masters, although little remains of her sanity. She instills terror in lesser cultists so that they will sacrifice themselves without hesitation when their masters command it.
Abilities
- Stage One: Kill the Intruders!
High Priestess Azil curses a random enemy player, increasing the player's Physical damage taken by 15 for 15 sec.
- Stage Two: Feel the Fury of Earth!
High Priestess Azil begins this stage by casting Energy Shield, then she hovers up to her altar where she will cast Seismic Shard three times. After finishing casting the Seismic Shard spells, she returns to the ground. Many more Devout Followers rush to help Azil during this stage.
Loot
- Elementium Fang
- Darkling Staff
- Prophet's Scepter
- Cowl of the Unseen World
- Slippers of the Twilight Prophet
- Leaden Despair
- Magnetite Mirror
- Helm of Numberless Shadows
- Cowl of the Unseen World
- Leaden Despair
- Magnetite Mirror
- Elementium Fang
- Tear of Blood
- Prophet's Scepter
- Helm of Numberless Shadows
- Slippers of the Twilight Prophet
- Darkling Staff
Data from patch 12.1.0. Game data provided by Blizzard Entertainment through the Battle.net API.