We Need This To Happen!!

So everyone probably knows the quote by saying 'If you think I'm crazy, you should see my sister!' There's one problem I find with this, why haven't we seen her sister? I feel like 's sister should actually be a champion. Just think about it, name her sister something chaotic or mischevious, such as Khaos, or something of the sort. As a champion I feel like 's sister would be melee, but in a support-type way. Maybe you could say she's been imprisoned or something and that's why has been rampaging and looking for her captured sister, fighting and . Then for the reveal, say something like '(Insert new champ name) has escaped Piltover prison with the help of Jinx!' or something of the sort. I don't know, tell me do you think this is a good idea or a bad one?