Tweaking Zyra´s Q, but giving her Vinelashers the ability to steal movementspeed from enemys
Because maxing E as Zyra does not give you more cooldown this could not be abused too often in lane (Zyra´s manacosts are high as well). This would give her a bit more survivability as a midlaner. Additionally, we give her Q 5 more basedamage (to be able to oneshot casterminions as midlaner), but increasing the cooldown of it as well to prevent her to be a monster as a support.
I think this changes would make her a bit more up to date being untouched since preseason 4.