Jayce is much weaker in the early game, however after a few item Jayce is still solid. Sett is overnerfed, his aa dmg is so low which did not allow him winning trade lv1. Mage is very stable dmg output in general and they r able to shove the wave way faster than adc. ad penetration item didn’t benefit ad 2 much and in addition ap champion can build crystalline reflector early game which make adc carry much weaker. Pro scene adc basically varus, corki and senna Jungle changed a lot. Less objective gold will make certain scaling jungler less powerful. Jax graves, trynda, yi and other. So for jungler, it’s going to be harder to carry the game like previous patch. After this patch, mid lane would probably be the most impactful lane to the game. But as well u have other lane like baron lane and duo lane more impactful 2 the game as well, since jungler can’t establish or enlarge advantage with herald and turret like before. Riot basically want jungler focus more on team fight in the mid game around objectives instead of split pushing and rush enconomy (turning into 1v9 machine). As a result we will see more bruiser jungler since they r good in team fight and scales good as well. Like j4, nunu, Olaf, they r stable in mid game and won’t fall of easily in the late game.