god damn it!
i had such an epic run with the wizard, basically jsut spamming lightning, tornado, exp grabber and the cooldown reduction nonstop, giving me tons of level ups.
sadly, I overdid it and the game froze forever due to the insane amounts of exp to be calculated, causing some unity error.
only could refresh the page.
and of cours,e wizard run gone, can onyl do it from scratch again :-(