Oaken Might has no icon

Effect icon is missing for Oaken Might:

<img width="456" height="144" alt="Image" src="https://github.com/user-attachments/assets/3121d10b-f521-40dd-a55c-0fa9689f95c7" />

<img width="228" height="70" alt="Image" src="https://github.com/user-attachments/assets/27808b5f-ab36-4474-a664-a822ed1b0742" />