I do that.For my RAcaseal.I use three different mags.One for defence,one for attack,and one for dexterity.Hopefully i'll get another soon to use as an all-rounder.
Me and my friends started raising 6 mags each for no reason at all, its challenging and you lose money but some I just raised to lv 35 and up, I accually stopped for awhile, cause Naraka started to hate me ^_^;
I have like 8 mags, each of them are ten or higher, my best is two hundred of course and my second was 147, which I gave to my cousin's character then I went idiot and deleted her characterand all that training for that mag went down the drain. To me it's not money consuming, I somehow keep mymoney above 200,000 even though I constantly buy things.
Hucaseal at level 14 hasn't defeat the cave boss? I beat the cave boss at level 9 with all my charries except my Force, he had to do it at 14. Hucaseals are stronger than Forces in atp and I think Ata you should have no trouble at all.
HUcaseal's have the best ATA of the Hunter variety.
you can always use some kind of bazooka or long sword
the person asked for help 19/03. today is 5/04, and since then discussion has majically gone off topic into mag farming. was that comment really necessary?
Well,it kind of helps,i thought.You know,making your mag stronger to help against bosses.
I completed him at 12 with my HUcast

just use a sword/partisan when hes close to you (great help damaging) and when hes being lame just use a handgun or whatever youve come by in ranged. You should also use your Photon Blasts IF it is a good one like the circle attack the hunters may get.