Talk:Cavern Fragment/@comment-38566257-20190218164115

It really helps to use the dancing blades. Make sure you have them lv 25 and unlock the ex skill that Enormously boosts BC, HC, Zel, Karma, Item drop rates & boosts BB gauge each turn 3 BC/turn, 20% BC/HC drop rate, 4% Item drop rate, 20% Zel drop rate, 15% Karma drop rate

and plus the  weapon skills 1 and 2 add a 3% drop rate making the whole total of 7% drop rate on items.