I would like to suggest two things that in my opinion are extremely necessary as they would help a lot.
First, an item that increases the speed (even more) of the magicians' techniques, like a "CB" or (as I think I've seen on some other server) a kind of "V802". Because the spells in this game no longer cause good damage... and worse than that... it's very slow.
And the second, I believe that it would be great to expand the limit of PDs in the bank, from 99 to 999. Because it is very annoying whenever you manage to collect 99pd in both banks, having to immediately exchange them for a Photon Sphere. Does anyone agree?