lukelightning said:
The problem with deities of magic is that they are normally deities of wizards, yet grant clerical spells. "Hi, I'm a god of magic. No, you can't cast fireball."
That's a good example of how one-dimensional most D&D gods are.
"I'm the good guy sun god."
"I'm the bookish god of magic."
"I'm the happy unicorn girl."
"I'm the dour guy who hangs out with trees."
The gods of myth were a lot more layered and complex. The closest parallel the ancient Greeks had to Ehlonna was Artemis, who also was a moon goddess, the goddess of hunters and who has all the sexual hangups of someone you'd expect in a pantheon headed up by Zeus. (Yes, some of those traits were grafted onto her by the Romans, but the end result is still complex and interesting.)
Wee Jas is a good example, blending as she does multiple portfolios that don't seem to have much to do with each other, and the combination creates a believably interesting figure.
If you didn't want to use Wee Jas, a more interesting god of magic would have something ELSE to the figure. The Forgotten Realms has a Weave metaphor for magic, and I could see a goddess of magic weaving the tapestry of the world on a loom, which could also bring in elements of prophecy and divination. Instead of a god who's basically Bigby or whomever, you'd have a goddess who works at her celestial loom, who also weaves visions of the future and past into the celestial tapestry, and who incorporates special thread (forged by dwarves?) into the tapestry to add magic to the world.