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PvEExpedition5 min read

Aion 2 Vakron Sky Island Guide: Bosses, Mechanics and Loot

How to clear Vakron Sky Island in Aion 2: the flying route, what each boss does in the game client's own data, how to survive Vakron's thorns and prison, and which cube rewards are worth your week.

What it isGame client

Expedition: 3 bosses, each with its own Odyle Energy Cube of loot.

Players
2–5
Time limit
60 min
Bosses
3
Can I enter?Game client
  • ExplorationLevel 45 · Item Level 1,400no weekly entry limit
  • ConquestLevel 45 · Item Level 1,40010 entries a week
  • +1 version · LaterNot open in EU/NA yet
What you getGame client
  • Vakron Guard
  • Vakron Breastplate
  • Wrathful Will
  • Artwork: Vakron Sky Island
  • Sealed Forest Spirit Wings

Unique gear from the Conquest cubes, and a Guaranteed Reward you pick after 21 cube claims.

Panels marked Game client come from the EU/NA client 2.0.7.0 (Steam build 25926599, extracted October 16, 2026) and update with each patch. Advice is written by aion2.gg.

In the gameGame clientAn island in Etheria under the rule of Boulder Lord Vakron and guarded by his spirits. This island became the stronghold of Vakron after he crossed into Atreia to punish the spirits of Atreia who refused the call of the Spirit Realm.

On this page

Vakron Sky Island is an Expedition across floating islands held by a lord of the Spirit Realm. Both versions open at the level cap with the same Item Level, and the client recommends a party of at least 2 players. Much of the route is flown rather than walked. The panels above answer whether you can enter and what you get. Below: the way across the islands, each boss with the casts that matter, and what to do with the cubes they leave. For how this dungeon fits among the others, see the dungeon overview, the endgame PvE ladder and the item-level route.

Route

Positions from the client's spawn data: Conquest Open the full map
On the mapGame client
  1. ThamonMini-Boss Rewards 1
  2. TiereMini-Boss Rewards 2
  3. VakronFinal Boss Rewards · Odyle Energy Cube
  4. Tranquil WetlandKibelisk
  5. First Island of the ArchipelagoKibelisk
  6. Final Island of the ArchipelagoKibelisk
  7. Thamon IslandKibelisk
  8. Vakron Sky IslandKibelisk
  9. Root HillKibelisk

Binding a Kibelisk takes 5 s.

What Phazkhi tells you on the way28 lines
  1. “Go inside, kru.”
  2. “Go down the cliff. Watch out for the Corrupted Fairies while gliding.”
  3. “Examine the nearby Kibelisks as well. It's good to bind with all the Kibelisks you come across, kru!”
  4. “Avoid the poison flowers. Their scent is alluring, but dangerous.”
  5. “There is a Spirit Predator just ahead! Bind with the Kibelisk first, kru!”
  6. “Go defeat Tiere now, kru! Up the hill to the right!”
  7. “Tiere is at the island below the hill. Glide down, kru!”
  8. “Amazing. Go explore the island now, kru!”
  9. “Glide down and destroy the Stone Wall blocking the path, kru.”
  10. “You can go by using the Windstream.”
  11. “You're in the Boulder Islands from here on out. Travel between them by flying.”
  12. “There is a Kibelisk that I recommend binding with, kru.”
  13. “Glide to the next island. Be careful of the Corrupted Fairies!”
  14. “Use the Updraft to get up, kru.”
  15. “The Spirits are defending the Barrier. Defeat them, kru!”
  16. “Go to the next island. There's a shortcut at the hilltop.”
  17. “Almost there. Don't forget to bind with the Kibelisk, kru!”
  18. “Use the Updraft. You need to ride the Windstream as soon as you reach the top.”
  19. “Now, kru! Glide to the Windstream!”
  20. “There's another Windstream at the end of this Windstream, kru! Ride it if you want to take the shortcut!”
  21. “The Island Warden is on the hilltop! Defeat him, kru!”
  22. “Go meet Vakron now, kru. I recommend binding with the Kibelisk beforehand.”
  23. “Now you can disable Vakron's barrier, kru!”
  24. “In this area, you'll have to activate the altar by absorbing Odyle while flying, kru.”
  25. “You may only activate the altar for a short duration after absorbing Odyle, so be careful, kru.”
  26. “You could die if you fall, so maintain your Flight Power by absorbing feathers, kru!”
  27. “This is the last Kibelisk. Bind with it, kru!”
  28. “This is an Odyle Energy Cube!”

The game's own captions, in the order of the client's records: close to the path, not a verified route.

Advice
  • Glide with care: Phazkhi warns about the Corrupted Fairy on the way down the cliff and between the islands, and about the poison flowers on the ground. Their scent is alluring, in the guide's words, but dangerous.
  • The guide recommends binding every Kibelisk you come across (each bind takes 5 s).
  • Windstreams are your shortcuts: the guide points out a second Windstream at the end of the first, and a shortcut on a hilltop between islands.
  • Before the final boss you must take down Vakron's Barrier: you absorb Odyle while flying, then activate the altar within a short window. Keep your flight power up by absorbing the feathers: the guide warns that a fall can kill you.

Thamon

Names in other regions: Korean

KR타몬

Mini-Boss Rewards 1Boss levelExploration54Conquest54NPC page: stats, skills, spawn
Game client
StaggerAuto-Analysis ModeNo enrage
What Thamon says (cues you can hear)
  1. On pull“Here I come!”
  2. On death“I... failed...”
AdviceHow to beat Thamon
  • At most every 60 s he takes on Cry of Life for 10 s; Mysterious Roar works the same way with its own timer. Phazkhi explains both: when his body glows red, physical attacks only heal him; when it glows purple, magic attacks do.
  • His widest cast covers 30 m around him, with extra damage scaled on max HP, and its ground marker shows for 2 s. Healers, treat it as your cue for a party heal.
  • His small circles petrify: 4 circles of 3 m that lock you in Petrification of Death for 6 s. Step out of every marked circle; a petrified player cannot dodge, so the tank keeps Thamon turned away from them.
What Thamon doesGame client
10 attacksnamed only “Attack” in the client
  • circle, radius 7 mclient name “Attack”#1604660
    Cast
    1.79 s
    Min. cooldown
    60 s
    Around the casterCry of Life10 s
    Phazkhi“Stop using physical attacks when Thamon's body is emitting red energy! He'll just absorb the damage, kru!”
    Thamon“Burn! Burn!!”
    Advice

    Red glow: physical damage dealers stop for 10 s and use the time to reposition or refresh buffs, while magic damage dealers keep going. Purple glow: the other way round. Call the colour in voice chat; a few seconds of the wrong damage undo a lot of the party's work.

  • circle, radius 7 mclient name “Attack”#1604670
    Cast
    1.79 s
    Min. cooldown
    60 s
    Around the casterMysterious Roar10 s
    Phazkhi“Stop using magic attacks when Thamon's body is emitting purple energy! He'll just absorb the damage, kru!”
    Thamon“Surging violet!”
  • Single targetclient name “Attack”#1604680
    Cast
    instant
    Cast range
    30 m
    Min. cooldown
    12 s
    Knockdown3 s
  • circle, radius 4.5 mclient name “Attack”#1604690
    Cast
    0.77 s
    Min. cooldown
    15 s
    Around the caster
  • circle, radius 4.5 mclient name “Attack”#1604700
    Cast
    0.77 s
    Min. cooldown
    15 s
    Around the caster
  • circle, radius 7 mclient name “Attack”#1604710
    Cast
    1.1 s
    Min. cooldown
    20 s
    Around the casterKnockdown3 s
  • Summonclient name “Attack”#1604720
    Cast
    1.54 s
    Ground marker
    2 s
    Cast range
    25 m
    Min. cooldown
    35 s
    1. Area: circle, radius 25 m
    2. Area: circle, radius 6 m
    Aimed at a targetSummons Thamon
  • circle, radius 3 mclient name “Attack”#1604740
    Cast
    0.92 s
    Ground marker
    2 s
    Min. cooldown
    15 s
    1. Area: circle, radius 3 m · 4 hits on the same area
    Around the casterPetrification of Death6 s
  • circle, radius 3 mclient name “Attack”#1604750
    Cast
    0.92 s
    Ground marker
    2 s
    Cast range
    25 m
    Min. cooldown
    15 s
    1. Area: circle, radius 3 m · 3 hits on the same area
    Aimed at a targetPetrification of Death6 s
  • circle, radius 30 mclient name “Attack”#1604790
    Cast
    2.05 s
    Ground marker
    2 s
    Min. cooldown
    20 s
    Around the casterExtra damage scaled on max HP

Tiere

Names in other regions: Korean

KR티에

Mini-Boss Rewards 2Boss levelExploration54Conquest54NPC page: stats, skills, spawn
Game client
StaggerAuto-Analysis ModeNo enrage

Also in the fight: Detoxifying Rafflesia, Gluttonous Tiere.

AdviceHow to beat Tiere
  • Tiere calls Detoxifying Rafflesia, and the boss's own shout warns you off the flowers. Phazkhi's line is the counter: defeating the summoned flower clears the poison clouds.
  • Isolation Zone lands on every player within 90 m for 180 s. Each second it hurts anyone standing close to a player who carries it: spread out and stay a few steps apart until it ends (a reading of the client data, not checked in game).
  • Its stuns leave no safe side up close: its semicircles of 9 m cover every side of it, and its lanes 20 m long and 5 m wide are marked 1 s ahead, each stunning for 3 s. Step out of the lanes when they show; only the tank stays within 9 m for long.
What Tiere doesGame client
9 attacksnamed only “Attack” in the client
  • cone of 140°, radius 9 m, then cone of 140°, radius 9 mclient name “Attack”#1604450
    Cast
    0.83 s
    Cast range
    4 m
    Min. cooldown
    8 s
    1. Area: cone of 140°, radius 9 m
    2. Area: cone of 140°, radius 9 m
  • line 20 m long, 5 m wide, then line 20 m long, 5 m wideclient name “Attack”#1604460
    Cast
    1.4 s
    Ground marker
    1 s
    Cast range
    20 m
    Min. cooldown
    18 s
    1. Area: line 20 m long, 5 m wide
    2. Area: line 20 m long, 5 m wide
    Stun3 s
  • cone of 180°, radius 9 m, then cone of 180°, radius 9 mclient name “Attack”#1604470
    Cast
    1.1 s
    Cast range
    8 m
    Min. cooldown
    15 s
    1. Area: cone of 180°, radius 9 m
    2. Area: cone of 180°, radius 9 m
    Stun3 s
  • circle, radius 90 mclient name “Attack”#1604480
    Cast
    1.6 s
    Cast range
    90 m
    Aimed at a targetIsolation Zone180 s
  • line 8 m long, 5 m wideclient name “Attack”#1604490
    Cast
    1.26 s
    Cast range
    21 m
    1. Area: line 8 m long, 5 m wide · 5 hits on the same area
    Stun3 s
  • Summonclient name “Attack”#1604500
    Cast
    1.26 s
    Ground marker
    10 s
    Cast range
    35 m
    Aimed at a targetSummons Detoxifying Rafflesia
    Tiere“Don't touch those flowers, unless you wish to be poisoned!”
  • Summonclient name “Attack”#1604510
    Cast
    1.63 s
    Ground marker
    10 s
    Min. cooldown
    70 s
    Summons Gluttonous Tiere
  • circle, radius 90 mclient name “Attack”#1604520
    Cast
    1.46 s
    Min. cooldown
    30 s
    Around the caster
  • circle, radius 90 mclient name “Attack”#1604532
    Cast
    1.46 s
    Around the caster

Vakron

Names in other regions: Korean

KR바크론

Final Boss RewardsBoss levelExploration54Conquest54NPC page: stats, skills, spawn
Game client
ConquestEnrageStaggerAuto-Analysis Mode
ExplorationStaggerAuto-Analysis ModeNo enrage

Also in the fight: Detoxifying Rafflesia.

What Vakron says (cues you can hear)
  1. When Frenzy starts“All who dirty the earth walking upon two feet shall suffer retribution!”
AdviceHow to beat Vakron
  • In Conquest the enrage timer runs out at 05:00. After it Frenzy gives the boss +200% damage and +100% combat speed: treat the timer as the damage check of the run. Exploration has no enrage timer.
  • Surging Thorn: the alert banner shows 7.7 s ahead, and the blast covers 60 m, so you cannot outrun it, and a hit stuns for 2.5 s. Phazkhi gives the answer: jump to dodge it.
  • At most every 45 s he marks a single player with Metastasis Explosion. After 4 s it explodes around that player, roots everyone caught in thorns and passes the explosion on to them. The marked player runs clear of the party at once; nobody goes near them until it has gone off. Then the others free the trapped player by destroying the thorns.
  • His ring attack leaves a safe band. It strikes a circle of 8 m and a ring from 15 m to 23 m around the same spot: stand in the gap between them. The small circle in the middle also holds you for 1 s and traps you in a thorn, so the player it is aimed at steps out first.
  • Its semicircles cover every side within 12 m: there is no safe flank.
  • The poison-flower row marked Exploration is the summon of Tiere, the previous boss: Vakron does not cast it.
What Vakron doesGame client

Watch for: the raid-wide casts

  • Surging ThornRaid-wide alert#1604390
    Cast
    instant
    Alert banner
    7.7 s
    Ground marker
    1.7 s
    Cast range
    7 m
    Min. cooldown
    8 s
    1. Area: circle, radius 60 m
    Around the casterBurn20 sStun2.5 s
    Phazkhi“Getting hit by this attack might take you out! Dodge by jumping, kru!”
    Vakron“The fury of the earth shall punish all who tread upon it with arrogance!”
    Advice

    The banner gives you plenty of warning: finish your cast and jump when the thorns surge. The players it singles out also take Burn for 20 s: healers, follow them. When to press jump exactly is not in the client data: learn it on your first pull.

  • Lodestone PrisonRaid-wide alertExploration#1604426
    Cast
    4.5 s
    Alert banner
    5.5 s
    Cast range
    10 m
    Min. cooldown
    9 s
    1. Area: circle, radius 10 m
    Aimed at a targetStun2 sExtra damage scaled on max HP
    Phazkhi“Vakron will attack after trapping you! Destroy the rocks and escape, kru!”
    Advice

    The cast takes 4.5 s, and then the circle of 10 m lands with extra damage scaled on max HP. Do what Phazkhi says: destroy the rocks and get out before the cast ends; everyone else stays clear of the trapped player. The data block lists it under Exploration only; whether he casts it in Conquest is not in the client data, so plan for it.

7 more attacksnamed only “Attack” in the client
  • circle, radius 8 m, then ring from 15 m to 23 m, then circle, radius 3 mclient name “Attack”#1604360
    Cast
    0.7 s
    Ground marker
    2 s
    Cast range
    5 m
    Min. cooldown
    8 s
    1. Area: circle, radius 8 m
    2. Area: ring from 15 m to 23 m
    3. Area: circle, radius 3 m
    Aimed at a targetHold1 s
  • circle, radius 50 mclient name “Attack”#1604380
    Cast
    2.17 s
    Cast range
    30 m
    Min. cooldown
    45 s
    Aimed at a targetMetastasis Explosion4 s
    Phazkhi“Vakron traps nearby enemies within thorns! You'll need to rely on your comrades to free you, kru!”
    Vakron“Accursed ones, these thorns shall imprison you!”
  • circle, radius 5 mclient name “Attack”#1604400
    Cast
    1.33 s
    Ground marker
    1.3 s
    Cast range
    25 m
    Min. cooldown
    30 s
    Aimed at a target
  • circle, radius 4 mclient name “Attack”#1604410
    Cast
    2 s
    Ground marker
    1 s
    Cast range
    20 m
    Min. cooldown
    15 s
    1. Area: circle, radius 4 m · 4 hits on the same area
    Aimed at a target
  • circle, radius 50 mclient name “Attack”#1604420
    Cast
    instant
    Cast range
    20 m
    Min. cooldown
    55 s
    Around the caster
    Vakron“You who have incurred the wrath of the Spirits shall be bound eternally.”
  • cone of 180°, radius 12 m, then cone of 180°, radius 12 mclient name “Attack”#1604430
    Cast
    1.5 s
    Cast range
    7 m
    Min. cooldown
    8 s
    1. Area: cone of 180°, radius 12 m
    2. Area: cone of 180°, radius 12 m
    Stun2 s
  • SummonExplorationclient name “Attack”#1604500
    Cast
    1.26 s
    Ground marker
    10 s
    Cast range
    35 m
    Aimed at a targetSummons Detoxifying Rafflesia
    Phazkhi“Tiere will create poison clouds! Defeating the Rafflesia will neutralize the poison clouds, kru!”

1 cast with no effect in the client data is left out.

Loot: the cube is the reward

The bosses themselves drop almost nothing. What you came for is in the cube each of them leaves, and opening a cube costs a resource that every character refills over time.

How the cube worksGame client
  1. Defeat a boss
    Each of the 3 bosses leaves its own Odyle Energy Cube.
  2. Open it with Odyle Energy
    40Exploration40ConquestOne claim per cube.
  3. Fill Condensed Cube Energy
    Every claim counts. When it is full you pick one Guaranteed Reward:Explorationafter 3 claimsConquestafter 21 claims
  4. Collect it before you go back
    Dungeons can be entered after collecting the guaranteed reward.
Odyle Energy holds up to 560 (840 with a membership) and refills 15 every 3 h.
Worked out from those numbers: a full bar opens 14 cubes in Conquest, and a day of refill (120) opens 3.
[Conquest/Transcendence] Remaining Unobtained Cube Count
  • Clearing and exiting the dungeon without obtaining Odyle Energy Cube rewards will still lower the count.
  • The count resets weekly. You cannot enter Conquest and Transcendence Dungeons when the count is 0.
  • Limit is applied on a per-server basis.
The client's entrance data takes 1 of this count per entry, so a cap of 10 gives 10 runs a week. Whether opening cubes uses more is not checked in game. The Guaranteed Reward needs 21 claims: at least 7 full runs with 3 cubes each.

Worth running it for

Chance per cube you openGame client

The last column assumes you open all 3 cubes of one run. Cubes also hold fixed rewards and more gear: Every drop with its odds

Guaranteed Reward: pick one

Advice
  • Short on Odyle Energy? Open the final boss cube first: for Wrathful Will it gives 3% a cube, against 1% from a mini-boss cube, and every claim counts toward the Guaranteed Reward all the same.
  • In Exploration the pick comes after 3 claims: take the armour piece your set is missing first.
  • In Conquest the counter is far longer (21 claims), and the pick also offers Gear Change Voucher: Vakron Sky Island (Bound). Take an armour piece while your set has holes. After that the voucher is your sure way to a Guard: its own text says it can become a Guard or a gear selection chest, while Vakron Guard drops at only 0.85% a full run.
  • Wrathful Will and Wrathful Mind are tradeable crafting materials: keep or sell them even if you do not craft yet.

Exploration vs Conquest

Version by versionGame client
FactExplorationConquest
Entry level4545
Item Level1,4001,400
Players2–52–5
Time limit60 min60 min
Weekly entriesnone10 entries a week+10 every Wednesday, 16:00 server time
Cube cost40 Odyle Energy40 Odyle Energy
Guaranteed Rewardafter 3 claimsafter 21 claims
Best gear grade in cubesUniqueUnique
Final boss enragenonethen Frenzy
Boss level5454
The weekly count in the game's own words
[Conquest/Transcendence] Remaining Unobtained Cube CountClearing and exiting the dungeon without obtaining Odyle Energy Cube rewards will still lower the count.The count resets weekly. You cannot enter Conquest and Transcendence Dungeons when the count is 0.※Limit is applied on a per-server basis.

The reset time is the client's server-time field, as of the data build named at the top of the page.

+1 version · Later The client holds 1 more version that EU/NA cannot enter yet; it is left out here. Boss HP per version is not in the client data.

FAQ

What level and item level do I need for Vakron Sky Island?

Exploration opens at level 45 with Item Level 1,400. Conquest opens at level 45 with Item Level 1,400.

Can I run Vakron Sky Island alone?

The client recommends 2 to 5 players. It sets no hard minimum at the entrance, but every fight in this guide is planned for a party.

How many bosses are in Vakron Sky Island?

3 bosses, each with its own cube: Thamon, Tiere and the final boss, Vakron.

How do you survive Surging Thorn?

Vakron announces it with an alert banner 7.7 s ahead, and the blast covers 60 m. The game's own guide, Phazkhi, tells you to dodge it by jumping.

Does Vakron enrage?

In Conquest, yes: after 05:00 the boss gains Frenzy. In Exploration the client sets no enrage timer.

What is the best loot in Vakron Sky Island?

The Vakron armour and Vakron Guard drop in both versions. Conquest adds Wrathful Will, Wrathful Mind, Sealed Forest Spirit Wings and Artwork: Vakron Sky Island. After 21 cube claims you also pick a Guaranteed Reward.

How long does a Vakron Sky Island run take?

The client only sets a time limit of 60 min. It holds no data on typical clear times.

Try it

The tools that do what this guide explains, with the game client's own numbers.

dungeonsvakron-sky-islandexpeditionbossesboss-mechanicslootpveparty

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