Kokabura at 55 lvl gives emp and b.soul. At 60 it change buff into shield and b.body (no emp/b.soul). I think that kokabura gives only new skills which it gained with raising lvl.
This should be fixed asap, cose i remember this was a problem on Frintezza also and those admins didn't understood that this a serious problem specially for those who are playing Mage class.
Looking into it.