for normal heroic any of the 3 specs will perform well enough its more a matter of what spec do you perform best with. if you plan on mythic raiding though I suggest learning all 3 specs as each spec his its strengths and weaknesses for each fight.
for normal heroic any of the 3 specs will perform well enough its more a matter of what spec do you perform best with. if you plan on mythic raiding though I suggest learning all 3 specs as each spec his its strengths and weaknesses for each fight.