User blog comment:Veryverylongname/OOPS for me and for Riot/@comment-24952680-20150225191219/@comment-5331854-20150304135715

Also has a stun now if you're skillful enough with the "new" Zil. The only thing that hurts his supportive role is that W doesn't reduce the CD of his ult anymore, which is a healthy rebalance (40% CDR Support Zilean was a neverdying beast anyway).

Therefore, there was rarely a better time to play Zilean Support than in this patch.