User blog comment:Darkhero562/The many roles of a spider/@comment-6301771-20130305013022/@comment-5219125-20130306184924

Zyra is better because she brings an aoe knockup to the team as well as slows from her plants. Damage supports are dangerous choices ( like nidalee and elise) because once you enter the teamfight phase, the champion really is nothing but utility, where other champions would provide more than just a scouting ability/single target stun (such a sona with her stun/speed boosts/auras or taric with his armor reduction/auras)