Kalistas Passive
Having played Kalista on the PBE I can say I'm concerned about her passive.
As I've tested using Runaan's Hurricane can let you farm like crazy when combined with Rend. But this attack speed route causes your Passive to become increasingly harder to use. Having lots of attack speed is strong on her as I've seen but the faster you attack the less time you have to use the jump. Not only that but when you attack the inability to cancel autos causes you to miss a lot of cs. It even can cause it to feel like she "locks" on to enemies and spears them to death. I like to hit all the minions with an attack plus the Runaan's and then Rend for the finish. But without being able to switch targets she is constantly attacking the wrong enemy.
The fact is that her Passive doesn't feel like it synergies-es well with her Rend. From testing I've found the need to click for every jump to be unresponsive or just require too much skill for the average player to have fun with.
So one solution would be to change it to be every 3, for example, auto attacks (or a spear toss) she will jump towards the cursor. This solution would remove her not being able to switch targets and avoid unnecessary clicking. It would also synergies better with Rend wanting attack speed.
Another possible solution, which would be my favoured one, would be to make her next movement within X amount of time after an attack or spear toss hit to cause Kalista to jump the first step of the movement.
In any case I think that Kalista is a great champion, especially the strategic choices that come from her Soulbind and Ult. But I think her passive gets in the way of the other abilities and even causes gameplay to feel "jerky". (as in a sudden move, not a mean person) This in turn, at least for me, made her more difficult to have fun with and I found my self not moving too much to avoid the flow of the game from being interrupted.
Thank-you to anyone who takes the time to read my input.