Balance changes for Thresh

In many of my matches, I have seen people who thinks Thresh is viable as an ADC because of "muh E passive". Tell you what? It doesn't work. All my matches with these type of people just did nothing but feed. Most of his kits are just plain CC's with low AP ratios which doesn't benefit a single AD at all, besides his E, which is only effective on the first AA in teamfights. But wait, people says he can damage painfully constantly due to the bonus damage from his E. Another thing. Thresh has an attack range of 450. 450. That's second to Urgot (at least this guy has armor penetration), and people thinks Sivir isn't in such a good place as an ADC, even with her 500 range & a painful Q.

What I would suggest is to totally remove his E passive to stop blindly convincing people that he can actually "adc", but small buff tweaks to his other abilities:

W- Dark Passage

Shield amount change from 60 / 100 / 140 / 180 / 220 (+ 40% AP) to 80 / 110 / 150 / 190 / 220 (+50% AP ratio)

E- Flay

Passive: Thresh's basic attacks deal bonus magic damage on each hit. This value is equal to the total number of Damnation.png Souls collected, plus a percentage of his attack damage based on the amount of time since his last attack.