Yep, it's pretty good, but it's limited and you have to choose it beforehand which is a pretty big limitation when you consider that most feats give you passive bonuses that work no matter how long you travel or how many fights you're in. Plus if you prepped spells for one situation and it doesn't come up, the feat is completely and entirely wasted.<br/><br/>Just as a quick example - enemies with adamantine weapons vs. stoneskin, circle of protection/dismissal/banishment vs. summons, enemies immune to electricity vs. lightning storm, and so on. Most enemies prolly won't have these, but if we get famous enough...