Maybe it's just me, but Fire is an extremely hard school. Traps are practicaly worthless becuase there are so many spells with long animations that last 3 rounds. The minion only does fire elf, so it seems pretty worthless at many times too.
There are a lot of fire bosses in MooShu, Grizzleheim and expecially Dragonspyre.
I thought this game was impossible. But I later created a balance character and a death character. Their combination of spells seems to make the perfect game experience.
It might just be me, but fire seems like an impossible school.