Unique Weapon Refining

With your Unique Weapon (Ancient) in hand, the final journey begins: pushing it all the way to +15. Each stage has its own method, and every level must be earned.

Refining Unique Weapon (Ancient) from +9 to +10
Combine two Unique Weapons (Ancient) +9 of the same type at NPC Aileen, following the standard composition.
Success rate: 3%.

Refining Unique Weapon (Ancient) from +10 to +11
Use Laktorerium Powder.
Cost per attempt: 1 Laktorerium Powder + 10,000,000 gold.
On failure, the Laktorerium and the gold are consumed and the weapon stays at +10.

Refining Unique Weapon (Ancient) from +11 to +15
Hand to NPC Odin (“Unique Weapons” option):

[02] Aegis Protection Emblem
[01] Unique Weapon (Ancient) +11 or higher
[04] Elder Bless Refining

Place the items in this exact order. The attempt uses the final success rate.

Materials:

* Elder Bless Refining: increases the success rate based on each one’s refine level.
* Aegis Protection Emblem: prevents the weapon from being destroyed and preserves its bonus. Each one adds +1% success rate.

On success, you receive:

[01] Unique Weapon (Ancient) +1 refine level

On failure, the weapon is not destroyed and loses 1 refine level.
All materials are consumed on every attempt, whether it succeeds or fails.

Base success rate:

+11 → +12: 4%
+12 → +13: 3%
+13 → +14: 2%
+14 → +15: 1%

Elder Bless Refining bonus (each):

+0: 2%
+1: 3%
+2: 4%
+3: 5%
+4: 6%
+5: 7%
+6: 8%
+7: 10%
+8: 12%
+9: 14%

Final Rate = Base Rate + (sum of the 4 Elder Bless Refining) + (Aegis Protection Emblem × 1%)

Example (4x Elder Bless Refining +3), attempt +11 → +12:
4% + (5% × 4 = 20%) + 2% = 26%

Note: from +11 onward, each attempt changes only 1 level, success is never guaranteed and the weapon is never destroyed.

Best regards,
Dynasty of Loki