Bands of Soul-Sealing

While wearing these bands, you gain a +1 bonus to AC if you are wearing no armor and using no shield. Whenever you expend ki points, roll a DC 25 Wisdom check. On a success, you expend one less ki point, potentially spending no ki points. You gain a bonus to the Wisdom check equal to half the number of maximum ki points you have. Rolling a 20 on the Wisdom check also succeeds. 

Notes: Bonus: Unarmored Armor Class, monk, Combat, Wristwear