Fury, stamina, mana. I'm a litte lost here. u need fury to attack with skills? then what is the blue liquid thing on the gameplay video that keeps being filled without the barbarian doing anything? Also on the skill tree it says some skill don't cost fury but on the pic for that skill it says it does. And... why does it sometimes say smth costs stamina? or is it mana :S cuz the witch doctor uses mana, and that's not what the barbarian uses right? I'm so confused with this. can somebody explain this?