Just a suggestion for a better game
There is something that is bothering me the most and I think if it was changed it would make the game more enjoyable.
Namely, items should be removable from champions without selling the champions. It has many downsides we cannot just switch items between champions. We could make a lot more tactical choices, counter certain teamcomps way better, etc.
For example: I had 8 Blitzcranks (the one on the field had a thiefs' gloves) when we got to the carousel where I saw the 9th one. Of course, I got him and I was happy about it... until I got back to the arena where the merged Blitzcrank just casted away his thiefs' gloves and used only the magic mantle that the 9th Blitz had. Therefore, my first and last gold unit in that game had nothing else than a magic mantle. How stupid is that? Why cannot it drop both items and let me decide which one I want to equip at least? Almost the same happened a few games later: I needed a magic mantle to complete the 3rd item on my tank, while I also tried to get a golden Lucian. At the carousel there was only one magic mantle. Guess who had it? Of course, it was Lucian. Fortunately, it was only my 8th Lucian, otherwise he would have destroyed my item set on Lucian. I had no choice but selling him, use the item at least and hope I will get him again with rerolls. I'd really appreciate if Riot changed the items the way we could just equip and remove them whenever we want.
(Also If items could be disassembled for components that would be even more awsome .... wishful thinking)