Resources
      

  The barbarians fury system (Last we have seen) works like thisThe barbarian has certain moves he can useHitting with these moves generates fury to do better movesSome better moves take away fury ballsLast we have seen, He has 3 fury balls, some skills use one some use two and so on.Kind of. No more fury balls.Any damage the barbarian do..
      

http://www.blizzblues.com/us/resources-26399119716.html