However much it reduces damage by, it would clearly be a valuable skill for most Barbarians, especially for Hardcore players. If the duration remains this short even with more points, it's an indication that the D3 team wants Barbarian combat to be a very busy, intense activity. Most of his skills, including the war cries, require Rage Fury to cast, Rage Fury can only be built up during combat, and most of the skills have a fairly short duration. It looks like barbarians are going to be very busy clickers, constantly cycling through their skills and adding buffs, and rebuffing, right in the middle of intense combat. In fact, that's the only time they can add buffs, since they don't last very long, and they require rage to cast.