Got Two Worlds II working, spent the last two days playing a mage because the magic system is far better than anything else I've come across for an endearingly bad RPG game.
It's a little complicated to work out but you build spells using cards that all have different effects when combined together, you can get some pretty crazy stuff like tornados made of anvils, or you can launch the dead bodies of your enemies at their friends. Or tornados made of dead bodies.
The only issue is it requires you to be somewhat creative and have a good memory do you can remember what combinations of cards do what.