We need more AS items not tied to crit, AP, or sheen.
Since the removal of Zephyr there has been no AS item not tied to expensive on-hit damage
(
), critical chance, or sheen (best AS item atm is trinity force).
I like playing AD yi. Not crit yi and not on-hit yi. I can't build bloodthirster as a semi-defensive item without feeling like I'm wasting gold on BotRK for too much lifesteal. Wit's end is okay but the point of AD is to scale well with AS and abilities. I'd rather pay for pure AS than on-hit damage. Even with Botrk and Serker's greaves it's still not as much AS as I'd like. Even on champions that are AD casters, as your AD gets higher, additional AS becomes a lot more efficient for increasing DPS.
Several other AA based champions like
could also use more options, even if it isn't 100% necessary for their build.
We have 3 crit AS items that fulfill the same purpose and are almost never bought together, yet we don't have a single AS item that compliments AD besides BotRK.