Ask Riot : Full Build game mode
So over the years, we got many fun game modes, URF being one of the most popular, and one reason was, it felt late game without having to wait 40 minutes to get there. An opposite way of getting URF without all the bonus would be FULL BUILD BRAWL. (FBB)
Before you dismiss the idea with the back of your hand pointing obvious flaws like why would I farm if I'm already full build? (Quick answer: you are still level 1 so you need exp)
Let just say you would start the game with X amount of gold, I think with 20K you could get all the dream builds you want with it. This would be a fun experience, as you would be able to appreciate lots of build diversity, lots of different strategies and it would be really focusing on what items DO, and what champions can do with a full build!
Unlike urf, where the game focused on having lots of abilities, FBB focus on having all your items at level 1 giving you opportunity that couldn't be allowed during a regular laning phase, opening champions in a whole new way.
I don't know, this is such an easy way to make a new game mode I wonder what would refrain Riot to explore the idea.
''It's not laziness if it's a simple idea as long as it's well-executed.''