Blade Meditation( Tome of Battle: The Book of Nine Swords, p. 28)
You have learned a meditation that grants you insight into the martial disciplines you have studied.
Concentration 1 ranks, Base attack bonus +4, one maneuver from any discipline,
When you take this feat, choose a discipline. You gain a +1 bonus on damage rolls with all the preferred weapons of your chosen discipline when using a strike combat maneuver, as well as a +2 bonus on checks involving the discipline's key skill. The save DCs of any maneuvers that you perform from the chosen discipline are increased by I, if they have a save DC.
The weapons and skills associated with each discipline are given below.
Desert Wind: Scimitar, light mace, light pick, spear, falchion; Tumble.
Devoted Spirit: Falchion, greatclub, maul*, longsword; Intimidate.
Diamond Mind: Rapier, shortspear, trident, bastard sword (katana); Concentration.
Iron Heart: Bastard sword, dwarven waraxe, longsword, two-bladed sword; Balance.
Setting Sun: Short sword, Nunchaku, unarmed strike, quarterstaff; Sense Motive.
Shadow Hand: Dagger, sai, Siangham, short sword, spiked chain, unarmed strike; Hide.
Stone Dragon: Greatsword, greataxe, heavy mace, unarmed strike; Balance.
Tiger Claw: Kama, kukri, handaxe, claw, greataxe, unarmed strike; Jump.
While Raven: Longsword, battleaxe, Warhammer, greatsword, halberd; Diplomacy.
A fighter can select Blade Meditation as a bonus feat.
*Described in the Complete Warrior supplement