Okay, so. I was needing to know if this certain spell could be made so that I could request for it to be made.

Is there any way you could make it so that:
You punch another player. In doing this, you gain their skill-set/powers/class. While you gain their powers, the powers you have taken are disabled for the opponent you've stolen from, leaving them with no magic.

Is that possible? If so, could you try help me out in the comment section? o.o