Lol card game: a way to spend the excess of IP

So yesterday I was just playing Magic and i thought to myself "Why is it that League doesnt have their own card game"

Players have been asking a long time why "Riot Games" if you only have one game, so this could be a way to make that name count. Jokes aside it could bring so many interesting things to the game, but the most fundamental is that it could be the way to solve the excess of IP some summoners have. You could sell the cards in sets that cost some IP, or even some stronger cards that can be bought outside of sets but cost more points. You can even make some non-gameplay items, like different versions of the cards, different spell effects that could cost RP in order to cover the expanses. You may say that in a game like this people would never buy "card skins" but I would buy, and if I would there are certainly a lot more ppl who would, and for those who don't believe you just have to check the profits of Blizzard's Heartstone.

The most important thing that this game would make is enable players with excess of IP to spend it in a fun and exciting way, but not just that, it could give something for players to do while they are waiting for their friends to finish their games on the client, you would even have a new way to explain the league's lore, with events and such...

The possibilities are endless

I only see one downfall, you would have to hire more people, and more important you need to be able to create a game that's different that any card game out there, such as Heartstone, Magic, Duel Masters ... While I understand that that won't be an easy task and would take a lot of time, you are the guys who reworked morde and sent him to bot lane along with a supp, you are the guys who never back in the face of a challenge, that's what makes you so special, you don't throw away the crazy ideas, you try to make em work, and that deserves respect