The procedure is similar to the previous one, with the difference being you need to select the 4th Wing: Improve Option as shown below: The higher the wing's elemental rank, the greater the Elemental Rune consumption. Below you can see the table with attributes and their respective values according https://mu-online53197.madmouseblog.com/17524534/o-guia-definitivo-para-como-fazer-wing-level-4-mu-online