[quote=Gravislayer]
Okey....casting this magic on a whole guild ....without taking a sweat? ...i am not statisfied with that.....i mean really...that seems too powerfull for me....Highest rank should he A and not S and so being able to wipe the thoughts of over 20 mages in a room.....
[/quote]

I can understand the exhaustion part...If you can remember Mystogan putting the whole guild asleep, but with the magic depletion...yeah I think it's a bit over the top.