Of course you can craft those same spells but they require you to be a pretty intensive gardener and some people don't have the time to spend in the online gardening business. So if you want to pick up a learned spell you might try the Lore Master now and then but do be prepared to be disappointed a LOT before you right spell or any spell for that matter.
If you fight her solo you'll want to take out the ice minion that constantly hits you with -25% and -40% weakness. The ice minion prolongs the battle by a very long time if you're soloing. Then gear up for a bigger hit with traps etc. when you're ready. If death, then 'Crow works pretty well to clean up the minions and heal up a bit. But you'll want an alternate-school wand that can be used to take the weakness off without using up your blades. If you're not a tank-y wizard you probably want to use the team-up option and go in with a group to make it more tolerable. Like the other day I was in with a Storm wiz that had 105 Damage and 612 Critical! Needless to say the battles finished in about 1 minute. So that helps your drop odds a bit I think.
The benefit of a group is that they can feel your pain with you on not getting any spells from her :)