AION 2 Abyssal Horn Den Guide: Stages, Bosses and Preparation

Abyssal Horn Den is a five-player Transcendence dungeon organized into four stages. The available data lists three level-90 bosses—Gargaum, Kapu and Dhakan—with additional stage effects appearing as the difficulty rises. Use this page to plan entry and progression; confirm all live values in the current dungeon menu.

Stage Overview

Stage	Item Level	Added effects shown in the data
Stage 1	3,800	None
Stage 2	4,100	Ascension
Stage 3	4,500	Roar, Ascension
Stage 4	4,800	Roar, Ascension, Residual Lightning

The captured rules show a five-player party and a Wednesday reset. Limits and requirements are seasonal values, so check the client before using an entry or reward claim.

Boss Roster

The listed encounter order contains Gargaum, Kapu and Dhakan. The dataset identifies the bosses but does not provide a dependable attack-by-attack timeline, so prepare to learn telegraphs in the lower stage: keep the camera wide, watch cast bars, avoid stacking unexplained ground effects and assign interrupts or cleanses before the pull.

Recommended Progression

Clear Stage 1 until the party can finish without exhausting recoveries. At Stage 2, identify how Ascension changes the run. Add only one stage at a time so the group can separate a new modifier from a normal boss mistake. Stage 4 combines three effects and should be treated as a coordination check, not only an Item Level check.

1. Confirm Item Level and remaining rewards.
2. Agree on tank, healing, interruption and revival responsibility.
3. Save burst cooldowns until the party understands the safe damage window.
4. Review the death or failure before changing equipment.
5. Use a lower stage for controlled practice if the new effect is not understood.

Build Checks

Accuracy and survival must be stable before maximizing output. If the group cannot enter, follow the gear progression guide. If attacks fail to connect or players die to expected damage, use the stats guide. Adjust Stigmas for movement, mitigation or utility when the active stage effect demands it.

Before Queueing

• Repair and lock the intended equipment preset.
• Put recovery and revival items on reachable keys.
• Read every active Transcendence effect in the current client.
• Confirm the group's target stage and reward plan.
• Review the broader Transcendence guide before moving up.

Stable lower-stage clears provide better progress than repeated high-stage failures. Learn one added effect at a time and move up when the party can explain why the previous clear worked.