TheWoWDBBoss
Cosmic Core
Rygelon - Sepulcher of the First Ones
Found In
Adventure Guide Entry
The in-game Adventure Guide text for the Rygelon encounter in Sepulcher of the First Ones.
Drawn to observe the fateful events unfolding within the Sepulcher of the First Ones, Rygelon succumbed to the Jailer's domination. Now this constellar turns its cosmic power against any who would oppose the Banished One.
Encounter Facts
Instance Entrance: Zereth Mortis
Sepulcher of the First Ones entranceThe Sepulcher of the First Ones entrance is in Zereth Mortis, at 81.0, 53.3 on the Zereth Mortis map.
Abilities & Strategy
What the in-game dungeon journal describes for this encounter. Every ability links to its spell page.
Abilities & Strategy
Overview
Rygelon gains cosmic energy as the conflict ensues. At 100 cosmic energy, Rygelon begins to cast Massive Bang, killing all players outside of The Singularity. Destroying Unstable Matter grants access into The Singularity through Unstable Matter Fields. After expending its cosmic energy inside The Singularity, Rygelon casts Shatter Sphere on a remaining Unstable Antimatter, returning all players to the Sepulcher.
Tanks
- Unmitigated damage from Corrupted Strikes stacks as Corrupted Wound.
- Collapsing Quasars from Celestial Collapse continually path to Rygelon, granting Quasar Radiation upon contact.
- Massive Bang kills all players outside of defeated Unstable Matter's Unstable Matter Field.
- Unstable Cores cast Gravitational Collapse upon reaching 0 health, inflicting massive physical damage to afflicted players.
Healers
- Massive Bang kills all players outside of defeated Unstable Matter's Unstable Matter Field.
- Dark Eclipse inflicts heavy Shadow damage.
- Eternal Radiation inflicts increasing damage the longer players remain inside The Singularity.
Damage Dealers
- Players afflicted by Dark Eclipse will trigger Dark Eruption unless they enter a Collapsing Quasar Field.
- Massive Bang kills all players outside of defeated Unstable Matter's Unstable Matter Field.
- Manifest Cosmos summoned Cosmic Cores target Cosmic Ejection at the nearest player, snaring them.
- Manifest Cosmos summoned Cosmic Cores target Cosmic Ejection at the nearest player, snaring them and applying Cosmic Irregularity.
Rygelon
Dark Eclipse
Celestial Collapse
Quasar Radiation
Collapsing Quasar Field
On this difficulty, contacting a Collapsing Quasar Field consumes it.
Unstable Quasar
Accretion
Manifest Cosmos
Stellar Shroud
Corrupted Strikes
Celestial Terminator
Massive Bang
Radiant Plasma
Unstable Matter
On this difficulty, |5Unstable Matter cannot be attacked and instead explodes at the start of each Massive Bang.
The Singularity
Eternal Radiation
Rygelon
Unstable Core
Corrupted remnants of previous Cosmic Cores. Upon destruction the Unstable Core casts Gravitational Collapse.
Stellar Decay
On this difficulty, Stellar Decay increases the player's damage taken from the Unstable Core by 100% for 6 sec.
Ability Spells
Every ability the Adventure Guide lists for this encounter, with its spell's school, cast time and duration and the description the game gives it.
Dark Eclipse
Shadow · Instant · Lasts 15 sec
Rygelon envelops several players with dark magic, inflicting Shadow damage every 1 sec for 15 sec.
Celestial Collapse
Holy, Nature, Shadow, Arcane · 1 sec cast
Rygelon summons Collapsing Quasars, which seek out the constellar.
Quasar Radiation
Holy, Nature, Shadow, Arcane · Instant · Lasts 21 sec
Collapsing Quasars fuse with the constellar upon contact, increasing damage done by 30% and inflicting Cosmic damage to all players every 3 sec for 21 sec. This effect stacks.
Collapsing Quasar Field
Holy, Nature, Shadow, Arcane · Instant · Lasts 8 sec
Upon destruction the Collapsing Quasar becomes a field of unstable energy for 8 sec.
Event Horizon
Holy, Nature, Shadow, Arcane · Instant · Lasts 5 sec
The player gains a temporary view of Rygelon's dark cosmos for 5 sec, allowing them to see Unstable Cores.
Unstable Quasar
Shadow · Instant
Destroyed Collapsing Quasars dip into The Singularity, becoming Unstable Quasars.
Cosmic Irregularity
Holy, Nature, Shadow, Arcane · Instant · Lasts 27 sec
Cosmic Ejections taint their targets, inflicting Cosmic damage every 3 sec for 27 sec. This effect stacks, and instantly kills targets above 6 applications.
Stellar Shroud
Holy, Nature, Shadow, Arcane · 1 sec cast
Rygelon erupts with the raw material of unborn stars, inflicting Cosmic damage to all players and causing their next healing to be absorbed.
Corrupted Strikes
Physical · 1.5 sec cast
Rygelon slashes with astral blades, inflicting Physical damage and Cosmic damage.
Corrupted Wound
Holy, Nature, Shadow, Arcane · Instant · Lasts 10 sec
This effect stacks, adding to the effects of previous Corrupted Wounds.
Celestial Terminator
Holy, Nature, Shadow, Arcane · Instant
Rygelon coalesces lines of stellar material, blasting players for Cosmic damage.
Massive Bang
Holy, Nature, Shadow, Arcane · 10 sec cast
Rygelon compacts a massive amount of stellar matter into an infinitesimally small point, exploding for Cosmic damage to all players. This damage cannot be mitigated or avoided.
Radiant Plasma
Holy, Nature, Shadow, Arcane · 1 sec cast · Lasts 0.5 sec
Rygelon erupts with cosmic energy, inflicting Cosmic damage if there are no valid enemies.
Unstable Matter
Holy, Nature, Shadow, Arcane · Instant
Volatile spheroids form within pylons along the edge of the chamber.
Unstable Matter Field
Holy, Nature, Shadow, Arcane · Instant · Lasts 30 sec
As Rygelon begins to cast Massive Bang, burned out Unstable Matter explode into unstable energy zones for 30 sec. All players enter The Singularity as long as Unstable Matter Fields were created.][protects a single player from the effects of Massive Bang, granting The Singularity instead.]
Drops
Loot the dungeon journal lists for this encounter in Sepulcher of the First Ones.
What is shown is the loot the game's own dungeon journal lists for this encounter.
What Each Drop Is
The Rygelon encounter lists 19 items in the dungeon journal, item level 233. Equip slots covered: One-Hand, Ranged, Trinket, Hands, Wrist, Finger and Feet. Every piece binds when picked up, so none of it reaches the Auction House.
- Antumbra, Shadow of the Cosmos One-Hand (Dagger), item level 233, requires level 60. Bind on Pickup. Stats: Intellect and Stamina. A vendor pays 119g 84s for it. Equip: Singularity Supreme.
- Astral Verdict Ranged (Gun), item level 233, requires level 60. Bind on Pickup. Stats: Agility, Stamina, Critical Strike and Haste. A vendor pays 150g 37s for it.
- Devastated Worldshard One-Hand (One-Handed Sword), item level 233, requires level 60. Bind on Pickup. Stats: Strength, Stamina, Critical Strike and Haste. Tooltip: “A bleak reminder to worlds unworthy.” A vendor pays 47g 75s for it.
- Dreadful Chest Module Miscellaneous, item level 233, requires level 60. Bind on Pickup. Usable by Death Knight, Warlock and Demon Hunter. A vendor pays 5g for it. Use: Sepulcher Chest Module.
- Grim Eclipse Trinket, item level 233, requires level 60. Bind on Pickup. Stats: Intellect. A vendor pays 71g 4s for it. Equip: Disintegration Halo.
- Handguards of Hidden Realms Hands (Plate), item level 233, requires level 60. Bind on Pickup. Stats: Strength or Intellect, Stamina, Versatility and Haste. A vendor pays 45g 5s for it.
- Interdimensional Manica Wrist (Mail), item level 233, requires level 60. Bind on Pickup. Stats: Agility or Intellect, Stamina, Critical Strike and Haste. A vendor pays 44g 89s for it.
- Mystic Chest Module Miscellaneous, item level 233, requires level 60. Bind on Pickup. Usable by Hunter, Mage and Druid. A vendor pays 5g for it. Use: Sepulcher Chest Module.
- Observer's Umbral Shiv One-Hand (Dagger), item level 233, requires level 60. Bind on Pickup. Stats: Agility, Stamina, Versatility and Haste. A vendor pays 119g 37s for it.
- Rygelon's Heraldric Ring Finger, item level 233, requires level 60. Bind on Pickup. Stats: Stamina, Mastery and Critical Strike. Tooltip: “Prepare for my arrival.” A vendor pays 53g 13s for it.
- Treads of Titanic Curiosity Feet (Leather), item level 233, requires level 60. Bind on Pickup. Stats: Agility or Intellect, Stamina, Mastery and Versatility. A vendor pays 66g 59s for it.
- Venerated Chest Module Miscellaneous, item level 233, requires level 60. Bind on Pickup. Usable by Paladin, Priest and Shaman. A vendor pays 5g for it. Use: Sepulcher Chest Module.
- Zenith Chest Module Miscellaneous, item level 233, requires level 60. Bind on Pickup. Usable by Warrior, Rogue and Monk. A vendor pays 5g for it. Use: Sepulcher Chest Module.
- Born Anew Consumable, item level 145. Bind on Pickup. Use: Learning.
- Cacophonous Roar Consumable, item level 145. Bind on Pickup. Use: Learning.
- Echoing Blessings Consumable, item level 145. Bind on Pickup. Use: Learning.
- Grounding Surge Consumable, item level 145. Bind on Pickup. Use: Learning.
- Recuperator Consumable, item level 145. Bind on Pickup. Use: Learning.
- Relentless Onslaught Consumable, item level 145. Bind on Pickup. Use: Learning.
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.
Achievements for Defeating It
9 achievements list a victory over Cosmic Core among their criteria.