okay , so this is only for xbox 360 , his gamertag is juke375 and he will give you everything he has ( this is what he did for me )
He doesnt duplicate , what he does is he joins your game , then drops everything legendary he has ( wich is a lot ). You must not pick up the items yet , you wait for him to dashboard and then you take everything. message him on xbox360 , ne answered me right away !
thanks to him , i passed from someone that spent days farming bosses to someone that had most of the legendaries ou there in less than 3 minutes ! ( conference call , bltch , maggie ,unkempt harrold etc . name what you want and he most likely has it )
merry christmas ! and your welcome