I think wands & staffs with subtle glowing jewels would look good. swords, those are used for heavy hitting, same with axes, the glow would look out of place. Elemental effects created by the sword actions would be acceptable, like ice or flames for example, but then it goes away.

Not too sure on the glowing jewelry either, especially for melee. Can you imagine a lit up "glow-in-the-dark" Galka, er Roegadyn?