This is my friend "Basement Lerker". we both have been working toward getting this exotic sword since reset and I am stuck because I did not get my materials before arms day. He however did grind that hard and we just finished the mission to get him his sword. We were light levels 291,294,291. It wasn't difficult at all just took teamwork. Ask me any questions you want about the exotic quest line and I'll answer them as soon as I can. :) he got the bolt caster and I'm working toward the raze-lighter. Will be getting in on Wednesday next week.