Playing my Barbarian, I recently found Doombringer:
That +16% damage from physical skills sounds pretty nice for a Barbarian. However, what actually counts as a physical skill? I assume something like Rend or Frenzy would, since it involves me smacking things with my sword. However, I've got Frenzy runed to do fire damage. Would it still be a "physical skill" even though the damage isn't?