How can I create Attributes(Magic) Shop?

So, I currently working on my fighting game called “Axcels”, which is still in beta and I want to add attributes or magic shop to my game but I don’t know how to do it…

I want to make a skill/attributes (magic) shop that only one client can be equip one magic instead of equip one magic to multiple client.

if there is any solution, please answer me.

Please use #help-and-feedback:game-design-support