Got this infos from Cabal PH official...
BL - Concentration / Soul Blade / Iron Skin / Mirage Step / Aura Barrier
FB - Earth Guard / Wind Movement / Aqua Vitality
FS - Mighty Wish / Crushing Blade / Shield Harden
still gathering infos for WA, FA and WI...
maybe for WA's passive buff is same with BL's Concentration, Soul blade, Iron skin and Aura barrier.. for FA's maybe its the Precision, Vital force, mana condense, eagle eye, art of healing, sharpness (in official sharpness has add magic atk) and for WI's its Force increase, Hardness and Magic Control.