Here is a cool build someone came up with on the WotC boards. I really like the concept and plan to use it at some point. It multiclasses the Soulknife with Totemist from Magic of Incarnum.
Name: Ghost Blade
Race: Duskling
Progression: SoulKnife 1/Totemist 2/SoulKnife 3/Totemist 3/Soulknife 2/Totemist 4/Soulknife 5
Build: Soulknife 11/Totemist 9
Melshaper: 9th
BAB: +14/+9/+4
Fort 9, Ref 13, Will 10
Feats:
1. Psycarnum Blade, (Weapon Focus[Mind Blade]), (Wild Talent)
3. Power Attack
6. Psionic Meditation
9. Leap Attack
11. (speed of thought)
12. Improved Essentia Capacity
15. Psionic Weapon
18. Double Chakra (totem)
Essentia: 10 (6 +1 Duskling +1 Psycarnum Blade +2 Bonus Essentia)
Soul Melds (5): Blink Shirt (totem) [4], Phase Cloak (shoulders) [0], Krenshar Mask [0], Three-fold Mask of the Chimera (crown) [1], Urskan Greaves (feet) [0]
Feats Invested: Psycarnum Blade [5].
Notable Abilities:
-If spends a move action for more than five feet Ghost Blade becomes ethereal (Phase Cloak).
-Gains extra move at the end of his round, but takes a -4 AC -4 to attack until end of following round.
-Able to teleport 50 at will as a move action (Blink Shirt)
-+4 to jump and Move Silently checks (Krenshar)
-5d6 insight bonus damage when hits w/ mind blade
-+2 mind blade with a +2 special abilities (+2 collision blade is good)
-Leap attack + bastard sword mind blade = 4:1 return on power attack
-+3d8 Psychic Strike
Favorite tactic: use charge action to get the effects of a leap attack, move action granted by Three-fold mask at the end to dimension door away.
Damage output on favorite tactic: (1d10 +5d6 Psycarnum Blade +2 Enhancmenet +5 Collision +1.5xSTR +4xPowerAttack)