Contrary to popular Belief, move speed slows DO affect Kalista
Stop saying that you're a '400 armor malphite that can't chase her down 1 vs 1' . Kalista would get utterly sht on 1 vs 1 vs a malphite since she doesn't build crit and lacks a way to deal with tanks ( unlike a certain champion with % true damage 
) and her auto's deal 10% less damage ( unlike someone that gets 10% increased damage that can also crit 
)
I'm just tired of people saying that kalista is "uncatchable" by tanks, if you're a cc-less assassin, then yes Kalista fks you over, but def not if you have any form of slow or if you're a tank
For proof, here's a response from Meddler http://boards.na.leagueoflegends.com/en/c/gameplay-balance/XdEfV8w1-kalistas-dash-speed-is-affected-by-slows
And a gif that shows you how kalista's dash is affected
http://gfycat.com/AchingPointedKoodoo
Maybe now the boards will stop band-wagoning on false facts.
) to catch her but now that SOMEONE can it seems like the majority of people moved to the next biggest problem in her kit, which is that she has an infinitely stacking twitch expunge that inflicts a slow (countering anyone who doesn't have a top tier slow), returns mana on kill, and makes contesting baron or dragon impossible unless you intend to ace the other team to do so.