Adding a League Of Legends Mode

We league players often wanna try some things but sometimes they fail and we cause the defeat of our team . So why not create a game mode where there is no cool-down , where you can buy whatever you want without gold and where you can pick any champion and try it out with your own build . And this mode will bring so much innovation to the game . So do you agree with me ?? If you got an other idea share it with us in a comment .[slayer-jinx-wink]