The only thing I have a problem with is the evasion part.
It creates sort of an immaterial rush.
I like footafron's idea of lowering the dodgechance depending on it's hp.
However, damsels are not a problem for their low damage, and dragons are not a problem because of their high cost;
and wyrms don't have high hp...
also, note that unupped dragons will have a better dodge% than upped this way.
... How about leaving a spell in hand if it's dodged? you'll have to re-pay the quanta cost in order to use it again.
It may be a bit useless vs all those 1
spells, though...