| Kerosene-Kanine |
I have a solution that I've been working on; Swashbuckler, full CHA, good DEX, take Inspired Blade so you can have Piercing Grace level 1. Swashbucklers get a deed that gives them a free single target demoralize after every successful hit (when they have at least one Panache point left). So, just use Dazzling display when you've painted yourself in a corner, but with this, you can keep them flatfooted indefinitely. should have most of what you need by level 7, with very good base damage of around 1d6 + 14 (not including magic weapons or the DEX belt you should be saving for).
For race, i chose a drow that has some house-rule limitations, like she can only make perception checks involving sight within 30ft in light, and no SR. The point is to get a racial trait called Voice in the Darkness, which gives bonuses to intimidate for the light level. Since you can easily max CHA cause the class needs it, your intimidate should end up being Cthulhu levels of high within a few levels.
Keep in mind, shattering defences only has the enemy lose their DEX bonus (but allows Deadly Stroke). The enemy is not actually flat-footed, so it can still make AoO and the such, and the only person that can trigger a Sneak attack is yourself, since Shattering Defences says specifically YOUR attacks.
I just had to interject because you all weren't seeing the easiest way to get things to fear you :)