Item mechanics could improve
- Why cant we remove items from champions?
It feels terrible to just have items wasted away in your inventory while you wait for the champion you want the item on or you get a champion you want from the carousel with an item that's pretty bad on that specific champ and its stuck that way.
- Why do items auto-combine?
Maybe you have 
for a 
and 
for 
to use on vayne, yet you cant use them until you complete either bloodthirster or rageblade because otherwise, they will auto combine into something else. This is specially annoying when you champs auto combine and 2 of the copies had basic items so the items auto-combine as well already so you end up with a level 2 champ with an item you most likely didn't want.
- We should be able to break down items to there basic components to add adaptability to the game
Riot says they like RNG because it forces players to adapt. Well you know what else would be great for adaptability? Being able to break down items into their components and combining them into something else that helps you against certain comps. I think most people just build whats best for the comp they have in mind. Once you make it to something like the top 4, then you should start looking to counter other comps but it doesn't feel like you can since at this stage, loose 1 or 2 fights and you end up eliminated so you might not even reach the carousel stage.
