League of legends is dead, Players will sink until its wizard101 comparable.
Riot games, you will lose players if you don't listen to the feedback that they take the time to submit. These are what need to be changed.
ADCS: IE - needs nerf Black cleaver - needs nerf for less much ranged stacks. ADC - need ratios nerfed on abilities(110% ad ratio on ezreal Q 2 second cd much?)
Mages Zhonyas- adjust/nerf duration to 1.5-2 sec based on level or something similar. or cd from 120-200 Death Cap- Nerf interaction with Veigar(making it only stack from item ability power not from kits.) Ludens - 600 mana lowered or removed(wave clear and 600 mana?) 20% cdr? 100 ap 10% cdr 250 mana passive upped against minions.
Assassins Enough just buffing utility, Buffing assassin's damage will indirectly balance adcs again too.
Lethality items - adjusted to be more effective against squishy targets and maybe gain 5 ad(adcs get power spike in 2 items why do assassins need 4 pen items to reduce their armor but failing if they get a ga or ninja tabi?)
lord dom regards should be 35% - 50% scaling by how much armor they have. for example armor under 125 gets 35-40 but 180 armor gets 45% shredded. 230 armor 48% ect.
lower mobility a little increase power. make their damage tied to their mobility more like zed w.
Talon is in a weak state as much as i hate to say this. His rake is slow q depends on it. R has laughable base damage/ratios. E doesn't do any damage. So he no reliable killing tool to guarentee anything. Risk no reward.
Rengar has no escape. Nocturne has no escape. Assassins getting in/out?