First game Zyra --> PENTAKILL. This guide rocks :D But I built a Warmog's instead of Void Staff cause they didn't had magic resist and we had no real tank.

What about RoA i feel it could be better the Athene's idk i alway have a problem on which i like better

It's from my perspective the best AP mid.. she is my main since release ! :)

There really isn't a champ that Zyra can't win her lane against. She can simply assassinate her lane opponent repeatedly and have no issues other than her ult cooldown. That being said, some champs make her useless late game (Veigar) or can assassinate her back if she slips up (Eve, Akali, Diana), but as Zyra you really have no excuse to lose your lane.

Well, I disagree with you. 

1. Zyra is very, very vulnerable to any AP champion that has as high range, as much AoE, as much CC as she has. Zyra won't be able to "win" a lane vs Anivia, solid Orianna, Malzahar (only during laning, though) and Cassiopeia (only during laning). They all have ridiculous range on their auto attacks/farming abilities that outshine Zyra's 575, they are more mobile (Anivia in sense of perma-slow and Orianna in sense of speed steroid/slow) and are generally safe vs Zyra during laning, because they can farm away from her plants and can easier dodge her E. The best case scenario vs these champs for Zyra is that she will be just equal in farm with them. Otherwise Anivia and Orianna bring much more to TFs due to their ability to destroy her plants (main DPS source) in a matter of half second.

2. Veigar isn't really a problem for Zyra. He is melee ranged compared to her. In late game Zyra should never EVER show her face before her tanking front line, so Veigar won't be able to Flash+Stun+Ult her as easily or as often like during laning phase. 

I don't believe laning against the afforementioned champs conventionally is a good idea. These champions rely on themselves to deal damage, whereas Zyra relies on her seeds. You drop a seed, luring an enemy to step on it, then you use Q or E, resulting in no retaliation. If they attempt to hit you, they get hit with the seed, if they hit the seed, free damage. You should never be in the range of an Anivia, as for Orianna, her ball zoning is nothing to your seed zoning.

I have played a good amount of games as Zyra since her release. I have only lost my lane 2 times (1v1) and I'm very proud of that. Saying this, I think I have a counter to Zyra. I do consider myself a very very good Zyra player, I have even told my friends I am the best Zyra player lol. I have lost my lane to a Galio and a Veigar (not sure how since Veigar has lower range, might have just messed up pretty bad)

Galio: I think this is a counter to Zyra (later game). I killed Galio at around lvl 4 or 5. After that I couldn't do anything to him. He would just stack MR and I couldn't do anything to him. Even with my first blood on him I couldn't do anything else. I didn't die to him, but I couldn't kill him either.

Veigar: I just got bursted down in less than 1 second multiple times by Veigar. He would put his stun on me, then do his combo and my health was gone. Not sure if this is a hard counter, because I could burst him down with my combo as well, so I think this is just a skill/farm lane.

I build my skills a lot different then this guide as well. I max E, W, then Q. I find this to be better for me. I like to max E first because I like having them rooted down for longer periods of time, plus I love using the melee plants more and I like having this off cooldown more often. I max W second because I want to always have seeds on me at all times. Q last because, well I can't max anything else. 

Item Build looks good to me some items are just situational. Last game I played Zyra I didn't bother building Void staff because nobody on the enemy team had MR except for one enemy. My End game build will usually be: Sorcerer Shoes, Zhonyas, Rabadons, Rylais, Rod of Ages, Abyssal Scepter/Void Staff, depending on my team and the enemy team.

Runes: I have the same runes except for the Mana regen. I feel like you don't need mana regen on this champion because she isn't mana dependent. I don't run out of mana that often on this champion. I will sometimes even give blue buff to my jungler because I don't need it. I would only like it for the cooldown reduction. I think I use ability power per level seals instead of mana regen. can't remember 100%

Well this is my thoughts on Zyra.

Well, maxing Zyr'a E after the nerf is not beneficial for you, since the only mathematical reason for that on her release date was that Rank 5 E damage > Rank 5 Q damage + Had an AoE snare with a small CD.

Post her nerf, she pretty much became a farm-fest Morgana, with the only difference that Zyra's DPS grows over time while Morgana's burst damage becomes less noticeable closer to the late game. After 40+ minutes, Morgana's only purpose is to Flash+Ult+Zhonya's Hourglass and random "please, let me catch an AD carry tonight" bindings. In other words she transitions from a damage dealing AP mid to a support AP mid.

So think of Zyra's E like of Morgana's Q, you should max it second, since you just use it as an opportunity to unleash your full rage on opponent before anyone has any good/tanky items (generally prior level 10-11). After that, you just won't be able to burst your opponent even with max root in 1 combo, you'll be forced to poke him a little bit before going all-in.

Zyra's Q literately = Morgana's W. It's a farm-tool. Unlike Morgana, Zyra can spam it after Rank 5, so hence, another reason to max it 1st.

If you are extremely confident in your abilities, E is a good choice. You drop some seeds in the middle of the lane, and when the enemy tries to crush them, E them. If it lands, and you have Liandry's, you will deal some pretty impressive damage. Obviously, if you miss, you now have no escape or damage for the next 12 seconds, and have to play fairly passively. The potential is far greater than a maxed Q, but you better be one hell of a player

w

Btw where you say your combo is "EWWQR", you can actually go "EQWWR" - your W cooldown is fast enough that you can get both plants out after you cast Q and before it procs. The advantage to doing it that way is your burst for one gets set up a bit faster (faster by exactly the proc time on Q) which not only deals damage sooner but gives enemies less chance to react.

I'm not 100% sure if you can use EQWWR early game but I know with the CDR from rank 2 seeds you can manage it for sure, as that was the earliest I tried it.

E snare duration is incorrect...

1/0.8/1.8/1.5/1.3 seconds?

WHile Nyjacky states it goes like:

0.75/1/1.25/1.5/1.75 seconds

Most likely is because of Zyra's hotfix. Considering that Riot made it before IGL tournament, maybe NYjacky didn't have the time to modify this guide (even on top it says that "it is under construction". Be patient).

Just pointing it out for an easier fix when he has enough time and desire to fix it