counterplay and outplay are endangered
I mean there is so much damage that every single time a champion begins to snowball there is no way to counter him.
for example :
A talon in 5/0 one shots easily a 2/0 fighter or any supp or adc. And while he is using his ult you can't see him the only time you can see him again it's when you are dead. I mean how do you want us to recover from our allies mistakes if you don't allow us to counterplay ?
talon is another example from many. For example leblanc. When you are hit by the chains you can only wait for your death. And if she makes mistakes she can always tp safe away.
There are too many champions with invisibility, mobility combined with huge damage. You want them to have huge mobility or invisibility then nerf their damage.
A champion should not able to be good at mostly everything. Stealth and Mobility are strong mechanics and they never should be combined with insane damage because counterplay is not present enough in those cases.
New champions and new reworked ones have too much tools and strengths compared to old ones.
like thats going to fix the problem and not make a new one
when Talon goes invisible. There is counterplay, especially for Talon which you are talking about. There is also the fact that you can play mid and make sure that Talon doesnt get fed in the first place, you can ping missing when Talon is missing, or you can outroam Talon and affect the map more then Talon. There is counter-play you just refuse to accept you own misgivings. I am not defending burst or saying that it isnt high or that certain champions are not op. Talon isnt one assassin I would think is op, compared to assassins like akali or Kassadin. However you have to accept responsibility to some extent, it isnt always the champion, sometimes another palyer outplays you and you lose.