Question.
This has been greatly expanded so that some of the Barbarian's skills can only be used when he has gained enough Fury by decimating the opposition. And to decimate the opposition, the Barbarian kills monsters and with enough Fury, he invokes powerful Whirlwinds and goes into a Berserk rampage leading to more decimation which makes the Barbarian an exponentially powerful character in the game. It remains to be seen whether other classes have similar or different mechanics like this that make them unique with respect to each other.
Originally Posted by vivianfu
This has been greatly expanded so that some of the Barbarian's skills can only be used when he has gained enough Fury by decimating the opposition. And to decimate the opposition, the Barbarian kills monsters and with enough Fury, he invokes powerful Whirlwinds and goes into a Berserk rampage leading to more decimation which makes the Barbarian an exponentially powerful character in the game. It remains to be seen whether other classes have similar or different mechanics like this that make them unique with respect to each other.