Talk:Fiora/@comment-26290243-20150826094323/@comment-3148314-20150826114236

ER grants her Life Steal, Cooldown Reduction and a big bunch of Attack Damage. Those are all things she greatly benefits from.

While she doesn't necessarily need the mana reg it provides, it would theoretically allow her to never/rarely recall if she has the time/opportunity to heal, e.g. from a minion wave or monsters.