How to Make League Last Longer

Turrets. Give small boosts to the outer towers, but buff the shit out of the rest of them. Triple their health, and increase their damage exponentially per minute. My idea is to give turrets 60% damage resistance, but loses 10% of that with each nearby champion/super minion attacking it. This will make it so split pushing isn't that much of a nuisance, and make teamwork all the more worthwhile. Another small idea is to make the turrets charge up their damage exponentially, only firing either when it will guaranteed kill its target, or when its target turns around to leave. This would make small tower-dive pokes less punishing, but will mightily dissuade full-on tower-dives.

Gold. Increase the base gold/second and gold/minion for everybody, so no one falls victim to an enemy snowballer. Too severely, at least. Once everyone is fed, the game will be more based around skill and less around who 4-man ganked bot lane first.

Change the dragons so they all give you stats that you actually use IN combat. You can leave that to your imagination, but my idea would be: Fire gives %AD and %AP, Mountain gives %Armour and %MR, Cloud gives flat Movement speed and %Attack Speed, and Ocean gives %Mana and %Max CDR Cap (3 drags would give you 5%, up to a maximum of 50% with the Intelligence mastery). Mountain only benefits split-pushers, which we can all agree shortens games too quickly.