Honestly the new essence reaver was a cool experiment but it failed
It's either useless or suboptimal on champions who it was intended for
or broken cheese on champions who it's not intended for

it usually amounts to being a meme build item actually

Of all the crit item reworks, this item is the most niche and problematic, while you can shove an IE and make use of the double crit chance passive or the true damge in any build, you can't really do that with ER
maybe reverting it would be better
[slayer-pantheon-rainbows]
which had better damage at the time
with sub options of

would be a good item