Support main wanting Zyra or Karma

I have some specific reasons for wanting each so I can't decide.

Karma I have Order of The Lotus skin shard and almost 625 essence to get it and she looks like a fun damage carry support. I also like seeing how much her ultimate can do to each ability early idk if it gives an advantage or what.

Zyra Damage carry support as well with CC similar to Morgana (95k mastery that's why I mention it) Also the rework coming seeming to increase her amount of plants and making them survive longer sort of like a Heimerdinger seems fun wink wink.