User blog comment:Willbachbakal/(Summoner Spell Concept) Fade/@comment-5263329-20130816130456/@comment-1330314-20130825034327

The problem with Darius's ultimate is precisely that it doesn't have any true counters. Darius himself is easily counterable through kiting, but his ultimate goes through all defenses due to the true damage. The full CDR reset meant he could use it whenever he felt like it, as the only penalty linked to it was a normal cooldown if it didn't kill the target (which isn't a true penalty at all).