I am curently a lvl 54 in storm riven hall going to the storm lord alter am i way to weak for this place? taylor ghost leaf lvl 54 life
You shouldn't be... but only you can tell if you're too weak. If you are being defeated over and over again, you are either too weak or haven't figured out how to play to maximize your wizard's talents.
I started Celestia at lvl 50 (beat Malistaire at 46 and then bored doing sidequests to level up) and left it at lvl 71. So no, there are many levels of wizard in Cl from the minimalist gm to the sidequesting demon transcendent that wants every spare scrap of xp for maximum spell efficiency. And hey, if you want to go into the Morganthe arc with bare minimum cards, more power to you! So no. There is no real op/underpower player for these later worlds.