The **Icarus Socket Engineer** is a specialized NPC in Ragnafinest who allows players to upgrade select Icarus equipment and related weapons from \[3] slots to \[4] slots. This system is designed for high-risk, high-reward progression, giving players a chance to further enhance already refined gear.
***
### Requirements
Each attempt requires:
*  **Oridecon** x 5
*  **Steel** x 5
* **30,000,000z**
{% hint style="info" icon="circle-question" %}
**NOTE**
* **You may submit one or multiple weapons at once.**
* Socket enchanting will reset the item's refinement. Refine bonuses will not be transferred to the newly socketed item.
{% endhint %}
***
### Upgrade List
Convert **\[3] slot weapons → \[4] slots** using the following base items:
| Target Weapon | Required Item |
| ---------------------------------------------------------------- | ----------------------------------- |
|  **Banryu \[3]** **→ \[4]** | +10 Blade \[4] *(ID: 1108)* |
|  **Fist of Fury \[3] → \[4]** | +10 Chain \[3] *(ID: 1520)* |
|  **Skewer \[3] → \[4]** | +10 Falchion \[3] *(ID: 1104)* |
|  **Icarus Sword \[3] → \[4]** | +10 Blade \[4] *(ID: 1108)* |
|  **Icarus Bow \[3] → \[4]** | +10 Composite Bow \[4] *(ID: 1705)* |
|  **Icarus Staff \[3] → \[4]** | +10 Rod \[4] *(ID: 1602)* |
|  **Icarus Book \[3] → \[4]** | +10 Book \[3] *(ID: 1550)* |
|  **Icarus Dagger \[3] → \[4]** | +10 Main Gauche \[4] *(ID: 1208)* |
|  **Icarus Axe \[3] → \[4]** | +10 Axe \[4] *(ID: 1302)* |
|  **Icarus Spear \[3] → \[4]** | +10 Pike \[4] *(ID: 1408)* |
|  **Icarus Whip \[3] → \[4]** | +10 Rope \[4] *(ID: 1951)* |
|  **Icarus Harp \[3] → \[4]** | +10 Violin \[4] *(ID: 1902)* |
|  **Icarus Katar \[3] → \[4]** | +10 Jur \[3] *(ID: 1251)* |
|  **Icarus Revolver \[3] → \[4]** | +10 Six Shooter \[2] *(ID: 13101)* |
|  **Icarus Huuma \[3] → \[4]** | +10 Asura \[3] *(ID: 13011)* |
{% hint style="info" %}
**NOTE**
* **Success rate for Socket Enchantment is 15%.**
{% endhint %}
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