Perfect Clarity of Mind and Body( Tome of Battle: The Book of Nine Swords, p. 35)
Your mastery of the Diamond Mind discipline allows you to tap into reserves of spiritual and physical strength that other warriors cannot imagine using. Through focus, dedication, and a heightened awareness of your inner talents, you push yourself beyond your limits.
Unnerving Calm (ToB) , Base attack bonus +6, two Diamond Mind maneuvers,
The Perfect Clarity of Mind and Body feat enables the use of three tactical options.
Coiled Spring: To use this option, you must use the total defense action and move no more than 5 feet on your turn. On your next turn, you gain a +30-foot bonus to your land speed and a +2 bonus to AC as you burst across the battlefield. You can make a single attack after moving in this round, if you don't move more than double your modified speed.
Pearl Mind: To use this option, you must first defeat an enemy in a duel of wills (see page 27). On your next turn, you gain a +4 morale bonus on any roll you make to disarm, feint, or trip that enemy.
Press The Advantage:To use this option, you must damage, disarm, or trip an opponent. On your next turn, you can make a DC 20 Intimidate check against your opponent as a free action. If this check succeeds, your foe takes a -2 penalty on attack rolls for 1 round.