Flurry of Blows (Ex): At 1st level, a monk can make a flurry of blows as a full-attack action. When making a flurry of blows, the monk can make one additional attack at his highest base attack bonus. This additional attack stacks with the bonus attacks from haste and other similar effects. When using this ability, the monk can make these attacks with any combination of his unarmed strikes and weapons that have the monk special weapon quality. He takes no penalty for using multiple weapons when making a flurry of blows, but he does not gain any additional attacks beyond what’s already granted by the flurry for doing so. (He can still gain additional attacks from a high base attack bonus, from this ability, and from haste and similar effects).
At 11th level, a monk can make an additional attack at his highest base attack bonus whenever he makes a flurry of blows. This stacks with the first attack from this ability and additional attacks from haste and similar effects.
Stunning Fist (Ex): At 1st level, the monk gains Stunning Fist as a bonus feat, even if he does not meet the prerequisites. At 4th level, and every 4 levels thereafter, the monk gains the ability to apply a new condition to the target of his Stunning Fist. This condition replaces stunning the target for 1 round, and a successful saving throw still negates the effect. At 4th level, the monk can choose to make the target fatigued. At 8th level, he can make the target sickened for 1 minute. At 12th level, he can make the target staggered for 1d6+1 rounds. At 16th level, he can permanently blind or deafen the target. At 20th level, he can paralyze the target for 1d6+1 rounds. The monk must choose which condition will apply before the attack roll is made. These effects do not stack with themselves (a creature fatigued by Stunning Fist cannot become exhausted if hit by Stunning Fist again), but additional hits do increase the duration.
Evasion (Ex): At 2nd level, a monk can avoid damage from many area effect attacks. If a monk succeeds at a Reflex saving throw against an attack that normally deals half damage on a successful save, he instead takes no damage.
Evasion can be used only if a monk is wearing light armor or no armor. A helpless monk does not gain the benefit of evasion.