I don't think Soul Sickle (the intermediate item) was implemented as well as it should. For one, it was never connected to
's build path even on the PBE, so there was an issue where everyone buying it got stuck at a midway item, and then had to go through ER all over again to get it.
The other, bigger issue is that the item gave lifesteal on top of its mana sustain, when in my opinion it should have given cooldown reduction. Lifesteal and mana sustain on a cheap, mid-tier item means marksmen with this get infinite lane sustain, provided they play passively, which is the exact opposite of that it should be doing: Essence Reaver, and by extension Soul Sickle, are oriented towards aggressive AD champions who want to cast more spells. AD spellcasters also typically peak towards the mid-game, which is where an AD + CDR item would especially come in handy, and not a mana sustain + lifesteal item.
I'd really like to see Soul Sickle reimplemented with CDR instead of lifesteal on the PBE in the future, though I think Essence Reaver still needs a bit of a buff (its lifesteal is only half as good as the one on
, and its mana sustain passive becomes irrelevant while BT's passive only scales up). Having ER's healing activate on spells (physical damage only, though) as well as basic attacks would make it much more palatable for AD casters.