> For the complete documentation index, see [llms.txt](https://guides.epicmu.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.epicmu.net/chaos-machine-craft/wings/mu-online-wing-level-5-guide-relics-crafting-and-endgame-progression/mu-online-wing-core-combination-guide-crafting-and-upgrade-recipes.md).

# MU Online Wing Core Combination Guide – Crafting & Upgrade Recipes

Learn how the MU Online Wing Core Combination System works including required materials, crafting recipes, Chaos Machine success rates, and advanced wing progression strategies.

<h2 align="center">Hello Adventurers of the Epicmu Universe !!</h2>

<figure><img src="https://676687583-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgxJrWcmzkEbdFVF3z6KB%2Fuploads%2FmdfKTaHsZ9UN5gTg2RJS%2FScreenshot_286.png?alt=media&amp;token=a08015a1-88b5-4eb1-8d29-d8bd2ec38e38" alt=""><figcaption><p>Illustrative picture</p></figcaption></figure>

<h3 align="center"><strong>How to attach/detach the wing core:</strong></h3>

{% hint style="info" %}

<p align="center">Wing core installation can be done by opening the 5th wing UI window.</p>

<p align="center">When you hover the mouse over the 5th wing in your belongings and press 'Alt+right click', the '5th wing (cloak)' UI window opens.</p>

<p align="center">With the UI window open, 'drag and drop' the 'wing core' in your inventory into the wing core slot to install it.</p>

<p align="center">Wing core installation/detachment can only be done on the 5th wing in your inventory, not on the 5th wing that is being installed.</p>

<p align="center">To detach, right-click the mounted ‘wing core’ in the 5th wing UI window.</p>
{% endhint %}

<h3 align="center"><strong>Wing core combination:</strong></h3>

| **Combination Result**                                                                      | **Main Ingredients**                                                          | **Required Ingredients**                                                                                                                                                                                       | **Combination Probability**                |
| ------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ |
| <p><sup>Pure</sup><br><sup>Wing Core (Type 1)</sup><br><sup>(Type, Option Random)</sup></p> | <p><sup>Clean</sup><br><sup>Wing Core (Type 1)</sup><br><sup>Design</sup></p> | <p><sup>100 Jewels of Blessing, 100</sup><br><sup>Soul Jewels, 100</sup><br><sup>Jewels of Creation, 100</sup><br><sup>Jewels of Chaos, 50</sup><br><sup>Uriel Feathers</sup><br><sup>20,000,000 Zen</sup></p> | <mark style="color:yellow;">**70%**</mark> |

{% hint style="info" %}

<p align="center">The Pure Wing Core Design (Type 1) can be obtained from boss drops;</p>
{% endhint %}

<p align="center"><strong>Wing Core Design  Item:</strong></p>

<figure><img src="https://676687583-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgxJrWcmzkEbdFVF3z6KB%2Fuploads%2FnNGmnciWZx7Dw7xq07U2%2FWingCoreDesign.png?alt=media&amp;token=3cad184e-0c20-4ba6-9dee-ba29147a9117" alt=""><figcaption></figcaption></figure>

<h4 align="center"><strong>Wing core options Wing cores have basic options and random options, and random options are given when created and combined.</strong></h4>

<h4 align="center"><strong>0 to 2 are randomly assigned depending on the probability.Wing core options</strong></h4>

<table data-header-hidden><thead><tr><th width="162"></th><th width="250"></th><th></th></tr></thead><tbody><tr><td><strong>Option type</strong></td><td><strong>Wing core option +0 reinforcement</strong></td><td><strong>Wing core option +15 enhancement</strong></td></tr><tr><td><mark style="color:yellow;"><strong>default Options</strong></mark></td><td><p><sup>Wing</sup></p><p><sup>Attack power/magic power/curse power increase 50</sup></p></td><td><p><sup>Wing</sup></p><p><sup>Attack power/magic power/curse power increased +2675</sup></p></td></tr><tr><td><mark style="color:yellow;"><strong>Random Option</strong></mark></td><td><sup>Elemental Damage (ll) Increase 15000 Elemental Damage (ll) Increase 15000</sup><br><br><sup><sub>OR</sub></sup><br><br><sup>Wing Attack power/magic power/curse power increase +2675</sup> <br><sup>Elemental Damage (ll) Increase 7500 Elemental Damage (ll) Increase 7500</sup></td><td><sup>Elemental Damage (ll) Increase 15000 Elemental Damage (ll) Increase 15000</sup><br><br><sup><sub>OR</sub></sup><br><br><sup>Wing Attack power/magic power/curse power increase +2675</sup> <br><sup>Elemental Damage (ll) Increase 7500 Elemental Damage (ll) Increase 7500</sup></td></tr></tbody></table>

<h3 align="center"> <strong>Strengthening the Wing Core:</strong></h3>

{% hint style="info" %}

<p align="center">Wing cores can be strengthened up to level 15.</p>

<p align="center">It can be strengthened with the equipment strengthening combination of Noria ‘Chaos Goblin NPC’.</p>

<p align="center">If you fail during level 1 to 7 enhancement, you will be lowered by 1 level. If you fail during level 8 to 15 enhancement, the level will be reset.</p>

<p align="center">In case of failure, there is no destruction of the item.</p>
{% endhint %}

<h4 align="center"><strong>Wing Core Enhancement Stones can be purchased at the Rude Shop.</strong></h4>

<p align="center"><strong>Wing Core Reinforcement Stone Item</strong></p>

<figure><img src="https://676687583-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgxJrWcmzkEbdFVF3z6KB%2Fuploads%2FptTKQdFz0wStAV4TAYfZ%2FWing-Core-Reinforcement-Stone.png?alt=media&amp;token=e734c9fc-57f1-4b44-ae02-082c7789e0bc" alt=""><figcaption></figcaption></figure>