Is kata a best champ ?

Kata is OP, invulnerable to ganks and quite mobile (), but her teamfight abilities are very, very low.

I've seen a lot of Katarina and yes i think that if you main her you can carry most of the games in low and high elo.

definitely not, if kata gets counterpicked with kass, the games over for kat.

He is a very easy character to use, but I don't think he is the best in the game, since they all have abilities that make them different and unique

She was really in her swing before the rework I don't really enjoy the new kit. But that is how the game goes i guess

Completely disagree that It is the most OP champ in the game, she gets countered really hard by any champ that has decent CC. Obviously you can beat opponents who counter pick you, but that requires a lot of skill.