Quote Originally Posted by Vilpich
The warblade had used the cosmopolitan feat to get UMD as a class skill and skill knowledge to get iaijutsu focus, so before combat he cast haste on himself with a scroll. Next, he charged Alfelias and used iaijutsu focus. He hit, and rolled a 19 on the iaijutsu focus roll and it modified to a 21 exactly...which is +3d6 damage, so 5d6 total with a greatsword.
Well, part of your problem is that you're using the wrong Cosmopolitan; it was updated in the Player's Guide to Faerun to grant a +2 bonus to Sense Motive, Gather Information and Bluff checks instead.

Unless you're PLAYING a 3.0 campaign... in which case you're going by the rules, and I'm afraid I have nothing further to offer you.