Forum talk:Neekerivittu/@comment-6526049-20130819193948/@comment-4636093-20130819195006

AD Casters have the benefit of being able to auto attack something if they want to. After their burst is over they still have some offensive power.

Example: Urgot, if he's ever close enough to auto attack someone (maybe after ulting them) then he will work one or two auto attacks in between every Q to double his damage output. If he scaled on AP then he wouldn't have that option.