Does talons Q not proc sheen anymore?

No, it's not an auto attack anymore.

It still works well with Sheen since it is an auto attack reset, with empowered range (although not damage), except Triforce is way too expensive, and the same amount of gold in raw AD/Lethality items is far more effective due to Talon's insane scalings.

i hate his rework sooooo much man

not since rework

No but if you wanna increase it you can get (no idea how effective that is for the price though).