EXP changes are the only thing killing the games in season 10.
EXP changes are making this game a living cesspool of acid and I legitimately cannot blame people for DCing at 15min.
Example: I watched a lissandra just last game first blood a kassadin at start of game. Pushed wave, took a plate as kass came back. LeeSin camped her bush from 4-7min and she disconnected from the game same level as her bot lane. I dont even blame her for the DC know why? Theres no chance she can even play the game anymore. This isnt because I think leesin is gona camp her lane for the rest of the game but simply because those lee sin ganks put her 2 levels behind her lane oponent as a mage into an assassin while her JG thumbs his naughty bits in the JG, farming for a time thats never going to come.
Example: Ally JG runs into enemy JG doing river crab. His team responds to his pings for help. Your team is too slow. Your JG loses the game cuz there is no catchup xp, hes too low level to gank and all he/she can do is farm JG as hard as possible for the next 4-8min to catch up. During this time, the enemy JG simply invades the shit out of you cuz he knows you cant fight him anymore and your game ends without your laners sacrificing their lanes to help you.
Example:Support cannot roam or assist the JG without losing so much xp, they become non-existant.
Any problem with season 10 can be directly traced back to the FUBAR XP changes.
Riot- if you want to make this the standard for pros- I think this would be a good meta. This is complete (After-effects of eating food) for 85% of the player-base.