I'm completely in love with dauntless and i've just given it to a third runner on my team (Okudo Runners). It turns those lovely rats into great blitzers with the speed and agility to hit hard and fast. Currently my runner Dreadclaw is at 74 SPP blodge, dauntless, tackle, horns ... why do i feel a niggle is only a block away?

Update: Dreadclaw skilled up with no aging and took Leap, should prove to be a very useful choice.