Improved Reaction

At 2nd level, the duelist can improve his speed and reaction time, triggering the equivalent of the haste spell as if cast by a sorcerer of the duelist’s class level. This ability can be used once per day at 2nd level, two times per day at 4th level, three times per day at 6th level, four times per day at 8th level, and five times per day at 10th level.