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Ki Pool (Su): At 7th level, the sacred fist gains a ki pool. This ability functions as the monk class feature, using the sacred fist's level – 3 as his effective monk level when determining the number of points in his pool and the bonuses granted to his unarmed strike. Additionally, the sacred fist can as a swift action spend 1 point from his ki pool to grant himself a +1 insight bonus to his AC for 1 minute. (This is in addition to the normal ki ability to gain a dodge bonus to AC.) This insight bonus increases by 1 for every 3 levels above 7th (to a maximum of +5 at 19th level). This ability replaces sacred armor.
Ki Pool (Su): At 4th level, a monk gains a pool of ki points, supernatural energy he can use to accomplish amazing feats. The number of points in a monk's ki pool is equal to 1/2 his monk level + his Wisdom modifier. As long as he has at least 1 point in his ki pool, he can make a ki strike. At 4th level, ki strike allows his unarmed attacks to be treated as magic weapons for the purpose of overcoming damage reduction. At 7th level, his unarmed attacks are also treated as cold iron and silver for the purpose of overcoming damage reduction. At 10th level, his unarmed attacks are also treated as lawful weapons for the purpose of overcoming damage reduction. At 16th level, his unarmed attacks are treated as adamantine weapons for the purpose of overcoming damage reduction and bypassing hardness.
By spending 1 point from his ki pool, a monk can make one additional attack at his highest attack bonus when making a flurry of blows attack. In addition, he can spend 1 point to increase his speed by 20 feet for 1 round. Finally, a monk can spend 1 point from his ki pool to give himself a +4 dodge bonus to AC for 1 round. Each of these powers is activated as a swift action. A monk gains additional powers that consume points from his ki pool as he gains levels.
The ki pool is replenished each morning after 8 hours of rest or meditation; these hours do not need to be consecutive.