I've posted the preliminary rules for a game I'm working on based on the concept from "Waving Hands" the classic game of wizard duels.
I've basically simplified the spell system so spell effects are easy to remember, and after a few games players shouldn't even need the small 3x3 table of spells.
I've tired to keep the spells that would make for nice interaction between players, with a balanced number of offensive and defensive spells. Also, offensive spells can usually be countered in different ways, so players have to choose when and how to attack and how to best defend against the possible attacks of their opponents.
Any feedback is welcomed, and feel free to post commnts here or in the game's page.