Melee Dual Wield Reaper build !!

Since AoM Ive been playing my melee dual wielding reaper . Ive had no problems with difficulty except when it comes to challenge dungeons final bosses . I cant seem to kill them . I want to ask if any of you have a reaper build that youre using to help me out . I will post of character build later . I main focus on cold vitaly dmg with life steal

please help

Other than Deathguard reaper thisis all I can help with

Thank you both . As to the reaper build youve sent , my build is very simliar . I will post my build soon and you can have a look and let me know