although it's still a low chance (~1/200 iirc) for a bosspack to drop a unique, they're probably your best bet for random drops. When running racks int he halls of vaught I would kill the champions and the evil urn boss and I have been lucky to get a few really nice items like blackhorn's face and vampire gaze from themAt this point I'd be happy with Sets. All I'm getting is Blue and Yellow.