Uth Rune

How do I obtain a Uth rune for the dungeons?

 

You have to kill a Golden Avia in Corkus, then use its drop to activate an uth shrine. You have to kill the uth guardian which eventually spawns in the uth shrine and you will get a random amount of uth runes.

 

I'm trying to find what an uth rune is but I can't find any threads. Could anyone that sees this comment tell me What an uth rune is where you can get it and what it does?

 

If you're asking how to obtain those, the answer is just above your post.
Otherwise, most of the basic information of the game are on official wiki, so I recommend you to check those.
https://wynncraft.gamepedia.com/Uth_Rune

Also you should make a new thread for questions like this, rather than reviving an old thread.
https://forums.wynncraft.com/threads/game-forum-rules.111874/