> For the complete documentation index, see [llms.txt](https://mu-ostyle.gitbook.io/mu-ostyle-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mu-ostyle.gitbook.io/mu-ostyle-wiki/mu-ostyle-wiki-eng/mu-ostyle/guides/errtel-evolution-rank-1-3.md).

# Errtel Evolution Rank 1-3

We previously saw the Errtel creation guide but we will also need to **evolve** the rank, for that you will need the **Elemental Rune** item

<figure><img src="https://content.gitbook.com/content/c6ksX0PMZC4kqvCpsrgp/blobs/9kKT11ojuHhfD69FwAhu/image.png" alt=""><figcaption><p>Elemental Rune</p></figcaption></figure>

Using Elemental Rune we can click on the **Errtel Level Up (Rank 1)** option and evolve to at least **+7**, making it possible to create **Errtel Rank 2**.\
\
**Errtel Rank 2** will only be created when you have **2 Errtel Rank 1 +7**, so it will work as follows:

**Errtel Rank 1** + **Errtel Rank 1** = **Errtel Rank 2**\
**Errtel Rank 2** + **Errtel Rank 2** = **Errtel Rank 3**

<mark style="color:red;">**IMPORTANT:**</mark> *When using 2 Errtel Rank 1+7, it is important to remember that the first Errtel will be the item you choose to evolve, that is, the second Errtel will only be used to create Rank 2.*

<figure><img src="https://content.gitbook.com/content/c6ksX0PMZC4kqvCpsrgp/blobs/YsCLt4obWCHiH6ZkZOWb/image.png" alt=""><figcaption></figcaption></figure>