User blog comment:Willbachbakal/(Champion Rework) Zilean, the Chronokeeper/@comment-3297251-20130806065336/@comment-1330314-20130806190903

The above Zilean burst is 560, and with Borrowed Time can rise to 656 , which is very good but actually some of the lowest burst for any mage in the game. Putting aside the fact that building towards full CDR usually involves sacrificing damage, his heavy sustained damage is more consistent and far less spammy than his current burst, which deals 640. Moreover, he can only get 60% CDR consistently by staying inside a small area, in a manner similar to. I also wanted to give him free CDR, as Borrowed Time already sort of does that, and one of his current weaknesses is that he has no use for cooldown reduction.