TRY MODE

I really want there to be a try mode so i can try champions before i can buy them. When i buy a "League card" and add the RP to my account, i spend like 3 days looking champions up and there game-play to buy. Adding a try mode would solve this, i could easily tell who i want because i can try them before i buy them. Thanks for reading this and i hope you guys take this into consideration :)