I like how some people consider themselves specialist trainers, like fire-type, water-type, etc.  So, I was thinking it would be cool to earn points as you level up or something (i don't know how you level up or if you even do).  Then you can spend those points into improving the types of attacks you specialize in.  So you specialize in fire, you can put points into improving your fire damage.  Or say you specialize in ice-types, you can put points into decreasing your enemies speed with your attacks.  Those are just examples you can come up with much more cool abilities like that I am sure.

/discuss