User blog comment:Inpursuit/Physical Zilean/@comment-96.242.40.239-20120602065951

lol, assume zilean has 500 ap (which isnt an uncommon number with ap mids):

q does (320 + 450) x 2 magic damage in an -aoe-; thats around 750 initially to anyone near the target, and an extra 750 to those still near it.

chronoshift adds an extra 1000 hp to revival. reviving a tank with 1000 extra hp may not be a dramatic change, but to an ad carry, it means a lot more considering their low hp pools.

dont underestimate ap zil plz