User blog comment:JuneReil123/RIOT PLEASE! BRING BACK SUPPORT ZILEAN!/@comment-6906412-20130522040646

Zilean support has always been viable and usable, just nobody knows how to use him.

Also, have you ever considered a build for Zilean closer to a Lux or Elise support build that involves more damage items rather than aura items? You get a fair bit of AP that way and can contribute quite a bit more to the team.