Agree with Stamina Reduction on Provoke. But I would extend it to many of the other abilities that use stamina as well.

Ex. Murderous Intent increases Crit Att for 30 seconds but takes up about 50% of stamina that could be used to hit 2x Skull Sunders. I dont have the numbers on me but Ive been playing Marauder since Beta and Im positive 2x Skull Sunder is going to be more damage than the extra dmg gained from the Crit hits that proc from Murderous Intent.

The Whole Stamina System Needs to be Reworked. The System itself is decent enough, but it is very far from refined.