should I get Riven next?
I have about 1/5 of the champions and so saving for one is still a big enough deal for me as I need runes as well. I'm into champions that have a way to either get really low cooldowns (Kassadin and Riven seem great for this) or cooldown resets (Katarina, Tristana, other resets). Would Riven be a good next choice or is there another champion with a more active playstyle? I don't really care for which role as long as I am able to seriously contribute. Minus Yasuo. Raged enough at that champ and I don't really want to buy him now. Also hope I posted this in the right forum, since getting champs is related to gameplay.