Hi! I had an idea to create an item that changes the slot marks.

For example: You have a lion that has Feline 7 in slot 3, but you want to put that mark in slot 5. But technically, that would be impossible unless there was an item for it. Suppose this item were created, then you could change the mark on slot 3 to slot 5 and automatically the mark from slot 5 would go up to slot 3. Simply put, you would pass the mark from slot 3 to slot 5 and the mark from slot 5 to slot 3.

I had this idea because I am working on a project to have an heir, but the marks in the desired slots are NOT in the place I would need to make the marks perfect.

QUESTION
Well how much would this item cost and where to find it?
This item could be offered at Oasis for a price of 2GB or at most 5GB.

If you have any further questions, leave it in the comment!

Remembering that this idea can be changed. I am not just talking about exchanging rare marks, but common or special marks. If a lot of people don't want to touch the rare marks then this item can only touch the other marks and leave the rare marks in their place.