How to Fix Zed: A Detailed Guide

Couldn't read it all. But, by judging by the second part of the text wall, and the extensive rhetoric argumentation in all the points above, you may have disregarded the efficiency of the current energy bar. Try reconsidering an alternative fixing via CDR, costs, and, perhaps, itemization.

And why does Zed need to be fixed?

Also, mana pretty much means late game Zed gets a massive buff.