I feel like this is easily the most powerful of the rage powers. At 10th level, a +5 dodge bonus? Wow. That more than offsets the penalty for raging -- and for a mere 3 rage points a round. It also doesn't have any kind of limitation like against any particular foe.
I'm not saying that I don't like the power, but as it is currently written, I feel it is easily the most powerful power in the group.