Especially like the artifact race. when Mar slows down time, he really is speeding him self up, so the only thing that can catch him has to move as fast, or faster than him. This requires a high amount of stored energy, which can be eco, or muscular fitness surpassing average levels completely. it could also be some other form of energy manipulation, which can be performed by special techniques, or a powerful object like weapons and armor. The pursuant must also be able to think as fast.