The lights are on
If you're just starting out as a mage in Two Worlds II, first I'd like to say congratulations. The game is great and playing as the mage class makes it even better. The first thing you need to do is go here: http://guides.gamepressure.com/twoworldsii/ and/or here: http://twoworldsvault.ign.com/View.php?view=Guides.Detail&id=28. I will finish this guide soon once I've had a couple more days to play it, and I will have learned many more new things about the spell system.
Revision I: I'm now Level 60, have now found out Air + Earth are arguably the best combination. Earth spells are the most damaging against all targets. If you grind on Marshlands alot, use Spectral Damage when farming near the Portals, they're immune to it.