Make it so LeBlanc cannot return to her W immediately, give it a 0.5 second delay. This way we have a decent small chance to CC her before she slams us for over half our health with no time to return any damage/cc her before she just ports back.
So LB has one strength and it's too much for you to handle? You should probably uninstall.
I say we just delete her! uses ultimate
This would make her worthless.
Give her the silence back, then, if you want to do this.
I have a better idea:
Stop being bronze
Chill, she's losing DFG
Only if you do the same for zed, who blinks. You realize that while lb is dashing, she can be hit and cc'd? Her movement is linear too.
Delete this brainless champion.
Odd, Last time I played LeBlanc, the enemy lulu, had no problem Polymorphing me before I can teleport back.
That change probably won't be enough. She'll still be ridiculously slippery and have a retarded early/midgame.
I say revamp her whole kit.
But then how would she clear in sieging situations?
Kassadin can't do it anymore, why should lb get to?
Protip: If you know she's about to use her W, target her before she does that, and your skill will go when she's close enough.
literately any cc against her can screw her up really bad
most of my mid laners dont have cc but if a jungler has cc to lock down her like 
its over for her
I think this change is dumb and would be overnerfing, but everyone who is saying that she is just a noob problem is clueless.
Also, I feel like LeBlanc is one of those champs whose mains love to say how hard she is. I have played her and I'm calling bullshit.
I thought she already had one, but that might just have been lag :/
sure lets have another melee mage 
if anything should be nerfed maybe the damage,cooldown or ability to ult after it.
i wont support this idea, except if she gets an buff on her other spells (utility mostly) since she has lost her silence, there is so much more counterplay if you cc her. there is no exception. if you are clever enough, you can cc her to her mark on the ground, making her easier to kill and probably force her r or flash too.
Eh, there are plenty of champions that do something really huge very suddenly, and without warning. Veig can stun your whole team, Annie can too, and Zed can poof back to his shadow.
Shaco can poof away, and reappear as 2 of him. And WW can instagib someone at the press of a button.
its not like leblanc is the only champion who does things instantly to get away, or attack.
I'm hoping that riot has not gotten to working on LeBlanc yet. She definitely needs nerfs especially considering she got a hidden buff with all the other midlane champions nerfed. She already is top 10 this patch. Probably top 5 next as many of the top 10 champions got nerfed. I agree with this suggestion. Her lack of counterplay is especially apparent with the rise of toplane leblanc (played by pros at challenger level). She can just abuse her range, dash in and out, keep melees at range, without any sort of counterplay whatsoever). It is more difficult to cc her than to cc the usual champion, and is impossible to punish her for the free damage if your champion lack hard cc or has a cast time on the hard cc. If they're hitting so many earlygame dominance lane bully champions so hard, I see no reach why leblanc should be left alone.
To be honest they could just nerf her damage.
Pick Lissandra
Wait for her to W in.
Press W
???
Profit.
Honestly, as a frequent LeBlanc player, I'm not in support of this nerf. Enemy champions already have the opportunity to use cc effects on LeBlanc as it is, and it's quite effective if used properly. LeBlanc relies heavily on her mobility and her ability to deal quick damage in stressful situations such as team fights.
Let's take a look at LeBlanc as she is right now, as played in Summoner's Rift. LeBlanc is not a viable choice if early-game farming is taken into account, as she doesn't have the attack speed or damage from her auto attacks to clear those minion waves without wasting her W. LeBlanc's E attack is basically useless throughout the early laning phase unless she can get a clear shot on you without landing on a creep. Most of the time, unless it's an extremely rare circumstance, your Q is not a viable choice for poking unless you intend to follow through with your distortion.
With that being said, that actually leads you to the only viable choice LeBlanc has throughout the early game laning phase, distortion. Distortion basically serves as the only possible way to keep up when it comes to cs-ing, and it's her main source of damage through team-fighting, and in escaping. As stated by other posters, there is opportunity to use crowd controlling effects on LeBlanc mid-distortion, so to put a cooldown on LeBlanc's distortion while there are already ways to stop her in place would essentially ruin the entire part of her kit that makes her a unique, and intelligent choice for Summoner's Rift.
I like to play Vel'Koz against her... push the waves so she can't roam or is forced to use her Distortion on clearing minions, poke her from a large range, and, if she manages to get close enough for the usual Q>W combo, I drop my Tectonic Disruption on the return pad so she either teleports back and gets stunned (and eats my damage) or is forced to wait a second before returning (and eats my damage anyway). Of course, no strategy is perfect, but this has worked relatively well for me.
Or you hit her in the mouth with a stun. It's easy to anticipate when she is gonna distortion. And she is really squishy. Either hit her when she lands next to you or as Xerath or Ziggs hit her when returns. Throw a statchel charge and/or a minefield on her marker. Or as Xerath land a point blank stun, charge your Q and aim it for the marker and not her. Or use your E. And if you miss then it's just her getting the best of you.
