Random Is Not Random
i love you, rito, but the things you call random are the least random random things i've ever seen in my life. the only way you'd ever get doubles as much as they come up in aram and mystery gifts is if you were flipping a coin. i think i've even figured out what you did to have such broken dice...
i think your dice roll on a list of all the champions, including the ones you don't own. i think if it lands on a champion you don't own, it pushes down the list to the first one you do own. so if, for example, you don't own the four champions that appear directly before, say, Sona, there are actually five dice rolls that result in your getting Sona, instead of one.
i wish you'd fix it. aram and mystery gifts would both be more fun if random actually meant random. it's especially tiresome in aram, where variety really is the spice of life.