imperial skean attack prefix help

i have a question that for the imperial skean, it has 2 attack prefix with elem damage and crit damage, how do i remove the 2 attack prefix :+)

So you want to keep suffixes and remove prefixes? If you have an empty prefix, you can use suffix can not be changed on the crafting bench. Just make sure you know what you are doing before you use the master crafts.

If it has no open prefix, you might have to use a method that is not 100% guaranteed to not modify suffix's.

What are the mods exactly? Can you list full item, I didn't know you could roll crit on prefix, is it an influenced item?