But rereading it, there's no reason for the fighter to ever not Foil Action. The wizard might end up casting NO spells, and the fighter still gets all of his attacks.
So cost-free Immediate ACtion is a problem.
Maybe Foil Action costs you an Attack of Opportunity? Costs you your next standard action? Costs you your next move action?
Thanks. Foil Action _is_ a little more than it should be.