Zyra has the worst passive and here is why
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Zyra is a great champ, don't get me wrong, but...she has the worst passive in the game....
all have passive similar to zyra's but much better.
karthus can use** all** his abilities upon death.
Sion can do massive damage and still take farm/ towers and even champions upon death.
Let's take a closer look at kogmaw's passive ......
kogmaw's passive is a near identical copy of zyra's except her's is a skill-shot and much more unreliable.
passive deals a max of 550 true damage at max level. (aoe)***
NOTE: this is NOT a hard to use passive, just run to where the enemy is unless they use a mobility spell...Well thats too bad.
Zyra's passive deals** 440 **true damage. **NOTE, THIS IS A SKILL-SHOT!!! **
why does zyra's passive deal less damage than kogmaw's even though it is a harder ability to use.
both passives can deal aoe damage, why does zyra's deal less at a much higher dificulty.
I can see what some of your answers will be...
"Well it only takes roughly 2 seconds for zyra to fire her passive, whereas it takes kogmaw 4 seconds"
My answer: zyra has to take the time to track the enemy champions movement pattern if they are trying to dodge it, plus they can allways use
both passives also have about the same range as well, Kogmaw has higher dmg
SOOO... in the end can somebody explain why Zyra has such a horrible passive?
A passive only proq'd upon death?
on a champ that needs good positioning?
If i made any mistakes feel free to correct me, thanks for reading! 

: His passive is bad but his kit is pretty strong, so balanced
:Nerfed to death
:Useless passive. His mana costs are really low. If he's jungle blue nullifies it. If he's support, you won't be AAing enough to use it. If you're mid, you'll be harassed everytime you try to cs. But mid is the optimal place to use his passive. While his mana costs are low, his passive would be good if they were: weak abilities, low CD,low mana cost. This passive could be used on something with eve's hate spike for example
:strong passive,kit is kinda all over the place
:ow so much damage. basically a worse vayne or worse teemo at this point..
Just be glad Zyra has a passive that's worthwhile