i lvled my Wizzy from 145-150 by soloing PV w. esotorica*. Its better exp than GV at same amount of time, however it requires more effort and will be more frustrating when u start dying xD (</3 freeze mobs)
I have 29k HP and nirvy gear , sage DB(stuns), expel , and the immunity/speed pot (forgot the name) Dx increases speed and make u immune to freeze. Will take about 7-10min per run.
gl on lvling Dx