You can't give an ADC hard CC and massive mobility
It's like these champions that CertainlyT creates are supposed to be as close to overpowered as possible, without crossing the line. Just so much that they frustrate the crap out of people, but riot can say they are balanced. Anyways onto Kalista There's just so much unnecessary stuff in her kit. The sentinel is cool, yeah, but.. why is it there? Why is the %hp damage in her kit too? The real problem I have with her is that, when combined with a close range support with strong cc, such as Leona, Blitzcrank or Thresh, the two can lock down and obliterate one of their enemy laners easily, not to mention how powerful her ultimate is in team fights. But then I hear others complain about the move. About how the Kalista messes them up when she grabs them. The ultimate was cool in theory, but it's only ended up being a mistake. I've read that her weakness is that she cannot cancel auto attacks. The problem I have with this is that it's a weakness created to balance her out, because riot knew she would be super strong. You can't create a weakness for a champion, they just have to be bad at something in the first place. I don't even see this as much of an issue for her because a lot of Kalistas rush Zeal or Berk Greaves, minimalizing the time you have to exploit her ''weakness''. tl;dr ADCs are sources of damage for a team. Not sources of vision, mobility, an AoE knockup, etc
be less generous with the next champion's kit riot, please. Try making a champion you can say is on the weaker side, and you can boost them over time, instead of intending for them to push the balance boundaries.