Just posted this over on the wizards forums, thought I'd bring it here as well for any additional input.
The only items you need are aptitude weapons for this build to function.
This is largely an expansion on JaronK's idea of using lightning mace (among other feats) with aptitude kukris for optimizing crits. A lot of credit goes to him (I really didn't add too much to it, I just reduced a lot of the feats needed for it to work). I put this together after I got the idea stuck in my head of combining weapon styles with aptitude weapons for neat combinations. I'd love to see new builds or improvements on this one.
Human Fighter 4/Warblade 5/Fighter 4/Warblade 2/Bloodclaw 2/Warblade 3
(Fighter 8/Warblade 10/BCM 2)
Variant: Weapon Group feats from UA
[spoiler=Outline]
Fighter weapon groups: Basic, claws, lightblades, maces/clubs, EWP: lightblades, EWP: claws
1:TWF(f), Rending Claws, WF: maces/clubs
2:WF: lightblades (f)
3:Flying Tiger
4:Imp. Unarmed Strike (f)
6:Wind and Fire
9:Combat Reflexes(w), Imp. TWF
11:Imp. Crit (Lightblades)(f)
12:Lightning Mace
13:Greater TWF(f)
15:Staggering Critical
18:Snap Kick
19:Imp Initiative(w)
f or w=fighter/warblade bonus feats respectively. These feats are in no particular order of importance, they could be shuffled around.
Maneuvers:
Stance: Blood in the Water (+2 others)
Wolf Fang Strike, Douse the Flames, Wall of Blades
Rabid Wolf Strike
Soaring Raptor Strike
White Raven Tactics
Dancing Mongoose
Raging Mongoose
Girallon Flesh Rip [/spoiler]
[spoiler=Benefits:]
-you can combine your weapons (I suggest courtblades because of EWP: lightblades) to make a reach weapon that can attack adjacent foes.
-for each two successful hits, you deal 1 point of (cumulative) bleeding damage.
-for each two successful hits, you deal rend damage (base weapon + 1 1/2 str)
-for each crit, the enemy is slowed for 1 round, no save.
(Not-so-new) Benefits:
-high threat range, blood on the water, and additional attacks from lightning mace.[/spoiler]
Books used: ToB, Secrets of Sarlona, Secrets of Xendrick and Drow of the Underdark