The new masteries
Take away from customization and make it "pick our combined masteries or nothing" As a rammus only player I hate the new jungle items, it takes like 20-50 hits on a minion to clear a camp, I used to rely on the old Ranger's trailblazer to help clear camps, now I get to lay wards down or use a jungle assassins item which is next to useless on me.
To those still playing this game; GL HF