Guys, if you want some additional fun playing the game, take some teamwork feats for your warriors. Triggering attacks of opportunity by critical hits can lead to chain reactions :D

Glad you noticed that, and I can't emphasize enough how potent that is if you have your party set up the right way.

Everyone who is a front-liner needs Opportunist and Combat Reflexes/Seize the Moment. Then get them an 18-20 crit range weapon appropriate to their role, and finally get Improved Critical for that weapon (or just make sure to get a +5 Keen one if one is available). Possible exception: Valerie. It's still useful for her to have those feats, but if you are running her as a straight-up tank, giving her a critfest weapon is a secondary priority vs. stuff like Mallet of Woe.

@mna99 Please refrain from spreading your confusion to others. Outflank, not Opportunist. Opportunist is a rogue talent and it's not a teamwork feat - it's not something 'everyone who is a front-liner needs' or can even attain.

Also, Seize the Moment isn't a good fit for many heavy armored front-liner types (like Valerie), as it has Combat Reflexes for a prereq, which doesn't make sense to grab unless you have DEX modifier of at least +2.

For most 'front-liners' Outflank will do the job (it also has another benefit like adding +4 AB...) - Keep it simple and don't hurt yourself; Outflank is the teamwork feat you want all melee types to grab.

You're right, it's Outflank and not Opportunist. Opportunist is excellent for rogues though (get it!).

It's easy to get Combat Reflexes with any frontliner since you will get belts of physical perfection +4 midway through the game. Even if you have a 9 or 10 Dex, you can get it. With a +6 belt you can get it despite a starting Dex of 8 (which I have done with a Str-based Cleric).