You're the only one. See every single video of Kalista. She's OP as hell. She's probably the most OP champion ever brought out so far. Maybe Kassadin was more OP when he first came out, can't remember.
Kalista has a WALKING ward, that spots pretty much any ganks from river side. She has a Q that does insane damage, goes through minions like a Nidalee spear. Or more like a Lucian laser pew that needs a minion as aim. She has the highest, sickest mobility ever. Landing skill shots on her (and I dont mean Bronze play) on a diamond Kalista is just impossible. And she can save / Throwing Leona's or big bombs into enemy groups, to get the perfect CC. Followed up by the rest.
Kalista should be nerfed greatly. I think an entire skill change would do it. Even as a Vi jungler I find it hard to stomp her for all her shit lol.