About monsters drop
you can check ProbGroup(x) columns
in table
dbo._RefDropClassSel_Equip
dbo._RefDropClassSel_RareEquip
Column : MonLevel = Monster Level
Column : ProbGroup(x) = the drop ratio and (x) = item degree it's linked with item class
well an easy calculate
degree * 3
A,B,C
Sos,Moon,Sun
about stones
dbo._RefDropClassSel_Alchemy_MagicStone
dbo._RefDropClassSel_Alchemy_ATTRStone
guide
follow the old steps