Just an Idea
What if there were these things called champion items and like they came from the champion's lore. Like maybe you could have 3 to choose from and each one could have a impact on the game. Maybe it has a short cool down, long cool down, or a really cool passive effect on it. Like for example maybe master Yi could buy his googles for improved attack speed that scales and maybe an attack speed boost on a short cool down. Idk, it could just be a cool way to make champs who need a little boost a little stronger.
. Plus that would be so much cooler than summoner spells.