User blog comment:Kigal/Vildur, the Honorable Chieftain/@comment-91.83.71.147-20130312125443/@comment-7086206-20130312204209

Both, but neither at the same time. He has ap scaling on his q, and his w gains strength based on his ad, armor and magic resist. The other two abilities have no place in getting bonus scaling without them becoming unnecessarily overpowered. I think it gives more incentive to the summoner to grab health, armor and magic resist items than tanky damage items, unless a certain ADC needs the boost in ad or the team needs a boost in shield strength. I put the items I did in offensive to bring to mind the possibility of a self-empowering bruiser off-tank.