Your "limited champion pool" isn't real. I absolutely do NOT see more of the units who aren't being used by other people; I absolutely DO see people get level 3 units of a champion that almost everyone is using. Half the people in the game were using Khazix, Graves, and Tristana, and someone one guy had a level 3 version of all three of then. Meanwhile NO ONE else was using Sejuani, and I didn't find a second Sejuani until the round before I lost, sometime after dragon. Your RNG algorithms are trash.