Martial Prowess plus Gambler’s Stance
Rumor from Beta is Martial Prowess and Gambler’s Stance originally stacked.
But live server Martial Prowess plus Gambler’s Stance gives a average +80% attack bonus instead of the +100% attack bonus from Martial Prowess and the average bonus of +93.8% attack bonus from Gambler’s Stance.
2.65 attack bonus cap * 0.68 hit rate= +80.2%