See, this is why I do the rps on my book ideas. It gets me feedback and ideas I wasn't seeing because I get so flustered with the story XD 

But no, the road to hell is paved with good [i]intentions[/i] so it isn't based on that. I think it would have to be limited by comprehension and honing your abilities. So just because you know how a spell should work doesn't mean necessarily that you can do it until you've practiced it. But yea, I get the no long term physical effects, I'm just trying to cover all the basis to make magic make sense. You guys are definitely huge helpers in that.