Small Kalista change
Reposting this from another thread but I think this is a pretty good change to Kalista to balance out her kit and make her a little less frustrating.
"I think she needs to have some sort of CC in her kit, I think a better option would be to move the slow on her E to her Q since that ability is kinda lackluster as it is now, and putting her CC on a skillshot would make her more tolerable."
So there would be no guaranteed CC just from her AAing you and it would add more interesting decisions to her skills, "Do I level E for more damage or do I level Q for CC to keep my enemy in range?"