Here you go :
watch?v=33T98jdS1Bk
Obviously you need a lot of gear but Prydaz + cloak are not the best legendaries for this challenge.
Got lucky at the end of phase one but I had a few other tries where i passed him before that, just a few more UAs and it's done.
You don't need drums either but it would be a lot easier with them (only need to take one hit from Karam).