People say he's a HuCaseal?
I am too and I'm ftw
I have yet to beat the caves yet... but I'll try and help (:
First of all, you definately want a level 175+ mag, hopefully a 200
As splash said, a yamato would be very helpful too. (mine w/ 60% on A. Beast like never miss)
I personally do not like slicers, but I'm also a Whitill... (look at my drop charts and you'll see why >_>)
Ditch the double saber, get a Demo Comet (I think you can get one easy on your id...)
Get a good gun, like 50 h vulcans on a raygun
Claws fail. Only claw that is good is dragon claw so you can cast foie w/ a cast
other than that... Good Luck!