Quote Originally Posted by Saintheart View Post
Having Improved Critical across the board wouldn't be much of an improvement in my view. The feat is useless since keen and impact are a thing, don't stack with Improved Critical, and don't take up a feat slot. And the class feature doesn't change that, so it's basically useless as well, a null feature. Without Disciple of Dispater shenanigans (which you'd need gestalt for to make it work) or wielding some obscure weapon with a native 17-20 threat range, you're still getting a maximum of about a 15-20 threat range, which isn't bad, but which anyone with about 8 grand and a liking for knitting needles can get with a keen rapier.
No it wouldn't but it would still be an improvement, so would having SR across the board and not just against dragons. Neither are that great but they are improvements and even in dragon heavy games you are still going to come across other things.

You can get Iron Power from Disciple of Dispater and the Improved Critical ability from Dragonslayer by level 20 but to be honest taking 7 levels of dragonslayer isn't worth the investment compared to just taking the Improved Critical feat...