Quote Originally Posted by arguskos View Post
Well, Scathing Wit fits really well, and is actually available in the Dragon Compendium. Actually... on that tack, what about this:

Scathing Curse [Hex]
Prereqs: Intimidate 8 ranks, Hexblade's Curse ability
Benefit: When you use your Hexblade's Curse ability, you may make an Intimidate check at the same time, replacing the DC of your Curse with the results of your Intimidate check. A creature can only be affected by a given Hexblade's Scathing Curse once per 24 hour period.

There, a strong feat that would be a good prereq for Mr. Lucky above.
Done and done! Great feat. Fits perfectly with the class.