User blog comment:SyberSinder/More Xerath reworks-Yay!/@comment-5002283-20121103094059

The buffing his damage by a lot you are guaranteed to kill at least 1 (a lot of aoe) person 100-0. And at such a high range that there is no risk at all. Xerath is being balanced by superior range and thus safety versus doing less damage then other busters (and having skillshots).

Currently however the problem is that all of his casttimes (not cd) are so high that it is difficult to hit and more importantly to hit them before they stand next to you.

And I actually think that there are worse innates that Xeraths', though this one doesn't really fit him.