Server Must Be L2j

1.There Should Be Puss The Cat.
2.Gm shop with Quest Items.
3.Your Level Should be 78
(I Tried It On Banished 1.2.4)

Level Up Normaly Until 78. Of Course change your class.
(I tried Human Mystic)

1.lvl Until 3rd Prof and put it on with puss the cat.
2.go to gm shop Buy 1st class items.
3.Go to Grand Master In Gludio And Change Occupation to first(wizard).
4.Go to puss the cat add secon and third .
5.Just Restart
Viola !! You have 2 Classes At the same Time And add third Then.
maybe Later I will make Video or few Screenshots
This is very easy i think