So when 
was released. I never really saw her much until now. She is gaining popularity fast! The one problem I am having is how to play against her. As a support I find it so hard to avoid her E rend. I don't understand much or her kit as she keeps spamming her rend and using her passive to kite. Also I don't understand in general how to counter her. Can you guys please help me figure out how to counter her?
Thanks in advance!
Immortal Strife4 votesCC or dive champions. Kalista has to build up items before she can really be effective. A good start is to pick champs (Graves/Sivir/Cait & Lulu/Nami/Sona) who can push her under turret where she struggle to last hit.
TCU Dushi3 votes[{quoted}](name=Immortal Strife,realm=NA,application-id=3ErqAdtq,discussion-id=9UUTnBB7,comment-id=0001,timestamp=2015-03-09T15:12:56.195+0000)
CC or dive champions. Kalista has to build up items before she can really be effective. A good start is to pick champs (Graves/Sivir/Cait & Lulu/Nami/Sona) who can push her under turret where she struggle to last hit.
How does she struggle to last hit under turret?
She has a low cost and no cooldown execute on minions (rend)
Unlucky Number73 votes[{quoted}](name=M4A1 Lycanthrope,realm=EUW,application-id=3ErqAdtq,discussion-id=9UUTnBB7,comment-id=00010000,timestamp=2015-03-09T15:15:37.348+0000)
How does she struggle to last hit under turret?
She has a low cost and no cooldown execute on minions (rend)
she has a horrendously slow auto attack animation, and her rend does less damage then u think. also rend makes up more then half her damage, if it's down then engage or punish her cause she has almost nothing to trade with now.
TCU Dushi3 votes[{quoted}](name=Unlucky Number7,realm=NA,application-id=3ErqAdtq,discussion-id=9UUTnBB7,comment-id=000100000000,timestamp=2015-03-09T15:23:20.808+0000)
she has a horrendously slow auto attack animation, and her rend does less damage then u think. also rend makes up more then half her damage, if it's down then engage or punish her cause she has almost nothing to trade with now.
we're talking about last hitting minions under the turret.
The caster minion takes 1 turret shot and will be killed by 1 auto hit or 1 auto hit + rend The melee minion takes 2 turret shots and will take only 1 auto hit to be killed without building any AD
If the minions took damage before reaching the turret and have their hp bar in a weird spot getting killed instantly by a turret hit you can preemptively AA + rend or finish of with Q.
Really, from all the ADc's she is one of the easiest to last hit with under the turret.
LegitBacon661 votesHmmm ok thanks!
RazorTS3 votesshe has no counter
Unlucky Number73 votesIt depends on what support ur using. if your using mage supports who poke a lot aim for her auto attack animation. Of all adc's kalista's auto attack animation is the slowest, especially at early levels. If she tries to last hit a minion punish her for it, with no boots at lvl 1 her passive does shit.
also because of her slow attack animation it is incredibly difficult to last hit with kalista. even her w and e helping her last hit, if you push to her tower then unless your facing a god adc she'll have much less cs then your adc. If you do this ward the river and watch out for ganks so as not to feed her kills to replace the cs she lost.
another thing to note is that kalista has low damage potential for an adc. her rend depends on constantly attacking and can be countered by , guess what, focusing on the adc.
if your a melee fighter with no gap closer don't bother going for her unless someone on ur team just cc'd her. It's wasted time. The biggest threat to kalista is whoever u have in mid lane and strangely enough your adc. her passive doesn't do much against someone who attacks from range, in fact it hurts her when facing any of her counterparts. using her passive actually slows down her attack rate therefore in any extended matchup between adcs kallista will often lose. I've even seen a fed kalista lose a 1v1 with a half fed ashe.
TCU Dushi2 votesIf you don't understand Kalista you might want to start by at least taking a look at the Champion spotlight for her.
Other than that, both MS and AS slows work very well against her.
With the exception of a few hard cc works, but that's not a Kalista specific counter :P
Immortal Strife2 votesI know pushing against her with wave clear champs is the way to counter her, she won't be able to chase with minions at her turret. And generally Kalistas don't build early AD making last hitting under turret harder than other ADCs.
RogueWill2 votesOnly way to counter is locking her down. Grab someon like 
or 
that can keep her in place for a log time as her dps output is usually lower than the other adc. There is really no other way, slows does nothing to her as she dash instead of walk.
Her rend resets if it executes a unit so she can hit a couple of minions and you, hit the rend and it will kill the minions (reseting it) and keep using rend again on you
LegitBacon661 votesI will purchase them now! Thank you!
Narasimha2 votes
or 
Slow her attack speed, and you slow her kiting as well. Plus Armor. So win/win/win.
LegitBacon661 votesAhhh thats how I should do it! Thanks!
Drunk Rummate2 votes1v1 her with a ranged champion (preferably a good duelist like quinn, graves, or draven)
2v2 her with burst (she generally wins 2v2 but if you can burst her before she can put a reasonable amount of spear stacks in you then you will win).
Son Olivia Hye2 votesIF you can shut her down early game then you should be fine. As someone pointed out she has to build into late game in order for her to do damage.
SpongebobIsLife2 votesHere are some champs that crap on kalista: 
welp that's pretty much all of em
LegitBacon661 votesI do play a lot of zed and akali. Ill take note of that thanks!
Weasel Kensei2 votesI use 
a bit, her polymorph stops all kiting and damage output. Kill her as a bunny.
asdbnmrty2 votesTargeted CC or fast cast CC (think malph's ulti)