Kha needs to be nerfed. Period.
Kha6 offers 0 counterplay for 1 simple reason, his Q does way too much dmg. Yes he was nerfed in season 4 and propaganda from Nightblue3 that he is destroyed was preety much it why people stopped thinking that he is OP. He is still OP and freelo. U wont see person that played kha more than 10-15 times that won't get fed at least 8 out of 10 games. KHA 6 needs to be nerfed.