Quote Originally Posted by Appleisaac View Post
At what maps? Are they hard to find?
All maps can drop them. If you want to craft balefort sewers items you need to farm balefort sewers maps. Alternatelly, I think the best way is to buy some from the cs. This is a much quicker method and they don't cost much at all. They are extremely hard to farm as well, since you need to spend quality time farming for them.