Eternal Challenge
Test your limits in United Aion with the Eternal Challenge, a solo-based instance that dynamically adapts to your performance and grows more dangerous with every successful run.
Each victory pushes you to a higher difficulty tier, unlocking greater rewards — but failure will pull you back down. Only the strongest can endure.
Instance Overview
- Required Level: 65
- Party Size: Solo only
- Daily Entries: 1 per day
- Difficulty: Progressive & adaptive
- Reward: UnitedAion Coins
- Reward Use: Redeemable via
.buy - Entry Location:
- Sanctum – Teleport Device (Elyos)
- Pandaemonium – Teleport Device (Asmodians)
Core Objective
Your mission is to destroy the central Aether Stone within a 15-minute time limit.
The Aether Stone itself does not fight back — instead, it periodically summons powerful Artifact Protectors designed to overwhelm and disrupt you.
Once the Aether Stone is destroyed:
- The timer stops
- Shadowshift emerges
- Defeating Shadowshift is required to receive rewards
Dynamic Difficulty System
- Difficulty starts at a low tier
- Each successful run increases your personal difficulty level
- Every 3 difficulty increases, a new stage is unlocked
- If you:
- Die
- Leave the instance
- Fail the time limit
your difficulty drops to the previous stage
Difficulty tiers are inspired by AION’s traditional medal progression.
Difficulty Stages
- IRON
- BRONZE
- SILVER
- GOLD
- PLATINUM
- MITHRIL
- CERANIUM
- ANCIENT
- ANCIENT+
While the system can technically scale beyond ANCIENT+, the challenge eventually becomes unsustainable. At that point, players will naturally fall back to the ANCIENT tier.
As difficulty rises: - Enemy power increases - The Aether Stone gains significantly more TP - Survival becomes increasingly demanding
Artifact Protectors
Throughout the encounter, different protectors spawn to defend the Aether Stone. Each plays a unique role.
Vord
- Appears from the start
- Deals minimal damage
- Possesses extremely high TP
- If not defeated within 1 minute, he fully restores himself
- Upon defeat, he will respawn later
- TP scales upward with difficulty
Scapi
- Appears starting at BRONZE
- Spawns in groups of six
- Individually weak but overwhelming in numbers
- As difficulty increases:
- Spawn frequency becomes faster
Vala
- Appears starting at SILVER
- Does not deal direct damage
- Continuously inflicts debuffs on the player
- If left alive for 1 minute, he fully heals
- Debuffs become:
- More numerous
- More powerful
as difficulty rises
Final Boss: Shadowshift
Shadowshift appears only after the Aether Stone has been destroyed.
- He adapts to the player
- Uses the player’s own strengths against them
- Defeating him is mandatory to claim rewards and progress
Important Notes
- Entry is limited to once per day
- Difficulty is tracked individually per character
- Rewards scale with difficulty stage
- Failing a run reduces your difficulty tier
- Higher tiers demand optimized builds and execution
Face an ever-escalating trial where victory sharpens the blade —
and failure reminds you how far you still have to climb.
The Eternal Challenge awaits.