Human Rogue / Warblade, 25 point buy, Core + PHB-II + ToB
Str 10, Dex 15, Con 13, Int 14, Wis 10, Cha 8
1/ Warblade 1 -- Weapon Finesse, TWF -- Blood in the Water (TC/Stance), Wolf Fang Strike (TC/Strike), Moment of Perfect Mind (DM/Counter), Sapphire Nightmare Blade (DC/Strike)
2/ Rogue 1 -- SA +1d6
3/ Rogue 2 -- [Evasion], Quickdraw
4/ Warblade 2 -- Wall of Blades (IH/Counter), +1 Dex
5/ Warblade 3 -- Insightful Strike (DM/Strike)
6/ Warblade 4 -- Weapon Focus (Dagger) -- Absolute Steel (IH/Stance),
Sapphire Nightmare Blade -> Bonecrusher (SD/Strike)
7/ Warblade 5 -- [Ironheart Aura] -- Ruby Nightmare Blade (DM/Strike)
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This is the stem. Up to now, we've been viable, but mixed as a skirmisher. There's not tons of synergy so far, except for how awesome we are with critical hits.
Trunk 1:
8/ Fighter 1 -- Dex +1, Weapon Specialization (Dagger)
9/ Fighter 2 -- Stormguard Warrior, Melee Weapon Mastery (slashing)
10/ Rogue 3 -- SA +2d6
11/ Fighter 3 (kick in the nuts)
12/ Fighter 4 -- Dex +1, Improved TWF, Improved Critical (dagger)
... and all the rest Warblade. We'd go for the Tiger Claw boosts that give us extra attacks, and the Diamond Mind Strikes that multiply or replace our single attack damage. Why?
Combat Rhythm.
What's so great about our crits? When in our Tiger Claw stance, every time we crit, we gain a +1 to attack
and damage, and these crits could be melee or ranged, and the damage & attack bonuses apply to both. So long as we crit at least once per minute, we keep accruing the bonus.
We add our Int bonus to attack rolls to confirm crits.

If we hit someone with Bonecrusher, we may give ourselves a +10 bonus to confirm crits against that target, though the save DC is quite low.
What's nice here is how little we've put into ranged attacks, but how we can build up great bonuses to them, and throw a bunch of them anyway.
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Trunk 2 involves Bloodstorm Blade from ToB. It's a sick PrC, and may be too strong for this contest.
Cheers, -- N