Featured Game Mode Idea : Make your own Champion!

So i just came up with this, and most of you can probably tell from the title what this is about. I'll explain it more in-depth in this thread.

So basically what this is about is that you can take, for example, Fizz's Q, Garen's W, Syndra's E and Yorick's R into one champion. When you go into matchmaking, you have to first create your champion, to avoid people talking in matchmaking for 5 of the same abilities, it would just be one for all. When you go premade you may not have the same abilities in your kits. (When 3 people are premade, only one of them can have ex. Riven's E).

A few other rules :

1. You may not have more than 2 times the same ability in a team. Matchmaking will look for people with different skillsets if possible.
2. Abilities must go into the ability slot they are on their original champion (ex. Hecarim's Q cannot go into the E slot, it must go into the Q slot)

This just about wraps it up, tell me if you have anything to add, or another rule, and tell me if you can come up with some super-op champion!