Magick cannot bring physical change into the physical realm, it can be achieved in other planes but now here. Therefore, there can be no recreation of the effects, because all of it is a physical change. Also, magick cannot make immediate changes in the physical realm, it takes time for magick to accumulate energy for that. So basically all combat magick unless used days before hand is void and roleplaying.
Actually it is possible to stun other people but not with Magick. It is a technique called chi/psi manipulation. This is most of the time found in the master of the art of Karate, Kung fu,etc. Masters because they have learned to co-exist with the universe and have the ability to throw energy balls at you that might stun you. It actually has something to do with the person getting stunned. If they believe they are gonna get stunned then most probably they are gonna get stunned but if they don't believe then it has a low chance ratio of actually working. That is the Human psyche