On Nana (luna) u should use a Long Sword... u should have Eager Cleaver by now i guess, id take that one. If ur havin trouble, take 5 flashbombs, 10 bomb material and 10 flashbugs with u, so u can flash it. You dont have to take dragon or water element. Raw is the thing that counts. To break her horn u need dragon element though. Just get eager cleaver or any decent ls that has good raw damage, flash it - attack - flash - attack .... and then u killed it or atleast repelled. Victory ! :d
Anything and Nothing lol.
Tales of Graces f