Scion said:That is what this feat is supposed to be, forcing tactical choices with one characters benefit potentially overriding anothers. That is exactly what the original feat 'fails' to do, and it fails even more miserably in doing something that feats should not be able to do, it takes away someone elses ability with them having no way of countering it or having the normal check get around it somehow.
Scion said:The penalty is much better than taking it away entirely, and in my mind having a check to see if you can instead 'gain' the aoo is by far the best.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.