the Arcane Duellist PrC might be worth considering.

the lvl10 ability is pretty nifty if it's subdual damage you're after.....

Flurry of Swords (Ex): The pinnacle of the arcane duelist's power is to create a flurry of sword attacks against a single target. When this power is activated, the arcane duelist makes one additional attack each round at her highest base attack bonus, but each attack that round suffers a -2 penalty. All attacks must be made on the same opponent. Further, the arcane duelist creates 1d4 quasi-real images plus 1 additional image per three levels of arcane duelist. Each image attacks the same opponent as the arcane duelist herself using the same bonuses as the arcane duelist, and any hits do subdual damage to the target. This power is usable once per day per arcane duelist level, but only once per day against any opponent. It requires the full-attack action to use this power. Aside from these differences, the images act as the mirror image spell.