User blog comment:Willbachbakal/(Champion Rework) Olaf, the Berserker/@comment-1920550-20150707074339/@comment-1330314-20150707132454

Mostly tanky AD, yeah. Perhaps you could get a if you want better DPS against tanky enemies, but otherwise Olaf would have so much innate attack speed already that he wouldn't have to build much more to max out on it at certain amounts of health.