All 7 Season 1 Nightmare Bosses, Mechanics and Rewards in AION 2

Season 1 is seven bosses, and the last one, Zikel's Apparition, stays locked until you clear two Rare fights at challenge level 10. Every fight is solo, so one missed tell can cost you the run.

Gatekeeper Pinopi

The opening Common fight. Its spinning push and close-range grab punish a sloppy trade.

Boss grade

Common

Season

Season 1

Arena

Root Cellar

Boss level

45

Suggested Item Level by challenge level

Challenge levels 1 to 10: 1,000, 1,050, 1,100, 1,150, 1,200, 1,250, 1,300, 1,400, 1,500, 1,600

Furious Feruk

A Common duel with stacking bleed and a dash that can't turn mid-charge.

Boss grade

Common

Season

Season 1

Arena

Dranactus Underkeep

Boss level

45

Suggested Item Level by challenge level

Challenge levels 1 to 10: 1,000, 1,050, 1,100, 1,150, 1,200, 1,250, 1,300, 1,400, 1,500, 1,600

Fafnir's Poison Blood

A Common fight that fills the floor with poison pools and explosive minions.

Boss grade

Common

Season

Season 1

Arena

Root of the Sacred Tree

Boss level

45

Suggested Item Level by challenge level

Challenge levels 1 to 10: 1,000, 1,050, 1,100, 1,150, 1,200, 1,250, 1,300, 1,400, 1,500, 1,600

Wraith Giselle

A Common caster fight where summoned Wraiths copy attacks and crowd the floor.

Boss grade

Common

Season

Season 1

Arena

Crypt

Boss level

45

Suggested Item Level by challenge level

Challenge levels 1 to 10: 1,000, 1,050, 1,100, 1,150, 1,200, 1,250, 1,300, 1,400, 1,500, 1,600

Fortress Guardian Notun

A Rare sword fight where the safe gaps shift from one attack to the next.

Boss grade

Rare

Season

Season 1

Arena

Destruction Archon Underground Fortress

Boss level

55

Suggested Item Level by challenge level

Challenge levels 1 to 10: 1,700, 1,750, 1,800, 1,850, 1,900, 1,950, 2,000, 2,100, 2,200, 2,300

Mutated Gerod

A Rare arena fight where Arena Slam pulls Gerod to the center and opens a safe spot behind him.

Boss grade

Rare

Season

Season 1

Arena

Blades Hideout

Boss level

55

Suggested Item Level by challenge level

Challenge levels 1 to 10: 1,700, 1,750, 1,800, 1,850, 1,900, 1,950, 2,000, 2,100, 2,200, 2,300

Zikel's Apparition

Season 1's Epic final tests lane timing, a jump-and-glide ring and marked circles.

Boss grade

Epic

Season

Season 1

Arena

Impetusium

Boss level

65

Suggested Item Level by challenge level

Challenge levels 1 to 10: 2,400, 2,450, 2,500, 2,550, 2,600, 2,650, 2,700, 2,800, 2,900, 3,000

Season 1 covers only Layer I

Season 1 uses Layer I only. The seven bosses below are the whole season's Nightmare roster.

The unlock chain that leads to Zikel's Apparition

Pinopi, Feruk, Fafnir's Poison Blood and Giselle are open from the start. Clear Pinopi and Feruk at challenge level 10 to open Fortress Guardian Notun. Clear Fafnir's Poison Blood and Giselle at challenge level 10 to open Mutated Gerod. Zikel's Apparition opens once both Notun and Gerod are cleared at challenge level 10.

How the item-level ladder climbs

Each boss lists a suggested Item Level for every challenge level, and the number rises as the challenge gets harder. It's equipped Item Level the game suggests, not Combat Power, so check the Item Level on your gear rather than your Combat Power.

Learn the four Common fights before the Rare ones

Pinopi, Feruk, Fafnir's Poison Blood and Giselle teach the habits the Rare and Epic fights punish: read the telegraph, track the floor marks and keep an eye on every copy of an attack. Learn them one at a time before you push a higher challenge level.

Rare and Epic fights reward timing

Notun and Gerod are the Rare fights, and both reward reading the arena before you move. Notun's safe gaps shift between attacks. Gerod's Arena Slam teleports him to the center, and the space behind him opens after a short delay. Zikel's Apparition is the Epic finale and carries the highest suggested Item Level of the seven, so leave each circle before its sword lands.

Clear each level for the fragments

Clearing a challenge level pays Phantasmal Fragments. A challenge level's first clear pays more than a repeat, so keep climbing new levels before you settle into farming an easier one. Each boss's reward row shows the payout range for its grade.

Whether the October 20 patch changes Nightmare

The October 20 Global patch notes add Hard mode to Krao Cave and Draupnir, raise HP for Lower Abyss Dimensional Cores and Abyss-spawned bosses, and adjust the collision hitboxes for Kaira and Argo. They list no Nightmare changes. The data is from the Global client 2.0.6.0 hotfix 1 snapshot, read October 9, 2026.

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