How Come Every Time The Enemy Has A Kha'Zix...
He gets fed.
It wasn't a ranked match this time, but every single game I play against this champion he gets fed. Before 10 minutes he was 4/0/0 and I had nothing on my score besides the cs I have collected from lane. I thought to myself "Maybe all Kha'zix players are skilled" just like how you may see someone play a champion that is never picked that much and they do extremely well but I think this is unlikely because I keep seeing this champion.
He's the only champion that can go invisible people play in challenger even though pink wards exist. I believe he is only there because of his raw damage. Why else would that champ stand out among the many that can go invisible.
The zone to avoid being isolated you literally have to be inside what is going to keep you from being isolated. The isolation zone makes me think. "They are literally standing next to each other how is that considered isolated?
Source: Me playing him and against him.