With Zyra you spam your buttons at a target . You need positioning and skill shot accuracy . Janna gives you much more room to outplay and thus allow you more creativity . You can just stay back and shield your adc , sure , but you can also bait like a motherfucker with it , 1 v 2 bottlane with shield and autos , the delay on the q allows to make interesting plays , you can deny aggression skillfully with it as it can interrupt dashes , you can set up aggressive plays , you can turn the tide of a teamfight in many ways with a good ult , you need to think whether you should use w or not , actually you need a lot of awareness in general to use janna ' s kit properly . At least imo . I can ' t see how zyra is harder to play , except for the fact that you get punished easily if you ' re out of position , but maybe I ' m looking at things wrong .