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Boss

Corborus

Corborus - The Stonecore

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Found In

EncounterCorborus
Journal creatures4

Adventure Guide Entry

The in-game Adventure Guide text for the Corborus encounter in The Stonecore.

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.

Encounter Facts

In the game's encounter order for The Stonecore, Corborus comes 1st of 4, before Slabhide.

Instance modesNormal, Heroic, Mythic, Mythic Keystone, Timewalking
Group size5 players
Instance typeDungeon
ExpansionCataclysm
Encounter order1 of 4
Encounter ID1056
Adventure Guide pin63.0, 59.7 on the instance map
  1. Corborus
  2. Slabhide
  3. Ozruk
  4. High Priestess Azil

Instance Entrance: Deepholm

Deepholm mapThe Stonecore entrance

The Stonecore entrance is in Temple of Earth, Deepholm, at 47.8, 51.9 on the Deepholm map.

Abilities & Strategy

What the in-game dungeon journal describes for this encounter. Every ability links to its spell page.

Abilities & Strategy

Crystal Barrage

Corborus channels a barrage of crystals on the location of a random enemy player, inflicting Physical damage in a 5 yard radius around the location every 0.5 second for 4 sec. In Heroic difficulty, the Crystal Barrage also summons a Crystal Shard every 0.5 second within the area.

Crystal Shard

These small shards of crystal have very low health.

Dampening Wave

The energy wave also inflicts each enemy with a heal absorption effect that will prevent 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 ground and resumes normal combat.

Thrashing Charge

Before Corborus erupts out of the ground with a Thrashing Charge, the ground where he erupts will be disturbed. Corborus then leaps out of the ground and quickly dives back underground. Any player caught in the path of this movement is dealt Physical damage and knocked back.

Rock Borer

Rock Borers have low health. If not killed quickly, they will inflict Rock Bore on their current target.

Rock Bore

A Rock Borer wounds their current target, inflicting Physical damage every 3 seconds for 15 sec. Rock Bore can stack up to 10 times.

Ability Spells

Every ability the Adventure Guide lists for Corborus, with its spell's school, cast time and duration and the description the game gives it.

Crystal Barrage

Physical · Instant · Lasts 4 sec

Deals damage every 0.5 sec to all enemies within 5 yards of the target location.

Dampening Wave

Shadow · Instant · Lasts 6 sec

In addition, targets will absorb up to healing.

Thrashing Charge

Physical · 2.9 sec cast

Leaps out of the ground, dealing damage to all nearby enemies.

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3D Model

First-party render from the game files. Model © Blizzard Entertainment.

Drops

Loot the dungeon journal lists for this encounter in The Stonecore.

What is shown is the loot the game's own dungeon journal lists for this encounter.

What Each Drop Is

The Corborus encounter lists 16 items in the dungeon journal, item level 37. Equip slots covered: Shoulder, One-Hand, Neck, Wrist, Hands, Trinket and Finger. Every piece binds when picked up, so none of it reaches the Auction House.

  • Cinnabar Shoulders Shoulder (Plate), item level 37, requires level 32. Bind on Pickup. Stats: Strength or Intellect, Stamina, Mastery and Critical Strike. A vendor pays 45g 55s for it.
  • Cinnabar Shoulders Shoulder (Plate), item level 37, requires level 32. Bind on Pickup. Stats: Strength or Intellect, Stamina, Mastery and Critical Strike. A vendor pays 9g 74s for it.
  • Crackling Geode Mace One-Hand (One-Handed Mace), item level 37, requires level 32. Bind on Pickup. Stats: Intellect, Stamina, Haste and Critical Strike. A vendor pays 75g 40s for it.
  • Crackling Geode Mace One-Hand (One-Handed Mace), item level 37, requires level 32. Bind on Pickup. Stats: Intellect, Stamina, Haste and Critical Strike. A vendor pays 86g 23s for it.
  • Crystal-Chained Lodestone Neck, item level 37, requires level 32. Bind on Pickup. Stats: Stamina, Critical Strike and Haste. A vendor pays 5g 34s for it.
  • Crystal-Chained Lodestone Neck, item level 37, requires level 32. Bind on Pickup. Stats: Intellect, Stamina, Critical Strike and Haste. A vendor pays 25g 77s for it.
  • Crystalgrinder Bracers Wrist (Leather), item level 37, requires level 32. Bind on Pickup. Stats: Agility or Intellect, Stamina, Mastery and Critical Strike. A vendor pays 8g 66s for it.
  • Crystalgrinder Bracers Wrist (Leather), item level 37, requires level 32. Bind on Pickup. Stats: Agility or Intellect, Stamina, Mastery and Critical Strike. A vendor pays 30g 13s for it.
  • Dolomite Adorned Gloves Hands (Cloth), item level 37, requires level 32. Bind on Pickup. Stats: Intellect, Stamina, Versatility and Haste. A vendor pays 30g 70s for it.
  • Dolomite Adorned Gloves Hands (Cloth), item level 37, requires level 32. Bind on Pickup. Stats: Intellect, Stamina, Critical Strike and Haste. A vendor pays 6g 57s for it.
  • Fist of Pained Senses One-Hand (Fist Weapon), item level 37, requires level 32. Bind on Pickup. Stats: Agility, Stamina, Critical Strike and Haste. A vendor pays 86g 62s for it.
  • Fist of Pained Senses One-Hand (Fist Weapon), item level 37, requires level 32. Bind on Pickup. Stats: Agility, Stamina, Critical Strike and Haste. A vendor pays 20g 24s for it.
  • Key to the Endless Chamber Trinket, item level 37, requires level 32. Bind on Pickup. Stats: Critical Strike. A vendor pays 3g 30s for it. Equip: Final Key.
  • Key to the Endless Chamber Trinket, item level 37, requires level 32. Bind on Pickup. Stats: Critical Strike. A vendor pays 8g 5s for it. Equip: Final Key.
  • Phosphorescent Ring Finger, item level 37, requires level 32. Bind on Pickup. Stats: Strength, Stamina, Parry and Critical Strike. A vendor pays 38g 52s for it.
  • Phosphorescent Ring Finger, item level 37, requires level 32. Bind on Pickup. Stats: Stamina, Versatility and Critical Strike. A vendor pays 5g 34s for it.

Read from the current game build's item data. Listed prices come from our latest US Auction House scan; a drop that binds when picked up never has one.

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