User blog comment:Willbachbakal/Poll: Implement a Champion Creator in LoL/@comment-9713132-20121216111945

There is nothing wrong or at fault with this idea. It's just that it deserves no place or attention in a game like League of Legends.

The concept is well-built and the idea is amazing, but really, if it's just for custom games, with no real place in the game, would Riot spend so much effort and manpower to produce this, when (as my guess) with the same amount of resources could make a map or two alongside a handful of champions.

Really, there is no problem with an idea like this, mind you. But frankly, there's no realistic chance this will ever be implemented.