User blog comment:RoznosicielCiast/Some really important things/myths about Darius/@comment-4442345-20130226212123/@comment-70.61.75.234-20130226215222

The PBE nerf is targeting one aspect of reducing his lane dominance. Currently, if he wins a fight and dunk kills, his ult i sthere every time you walk into lane. It's the same reason they nerfed the CD on Garen's ult. He killed you, you walked into lane, his ult was there the moment you came back, and he killed you again.