Lux needs some help.
While the regen nerfs have hit a lot of mana intensive champions. (Specifically, CDR/Mana regen champs who are mana hungry but who's cooldowns aren't quite low enough to warrant a tear most of the time.

etc) none of them have it as bad as
. At least those other champs still have the CDs and extra aoe abilities to keep up with pushing, Lux can't even say that. It's a HUGE disadvantage. Her E costs 70/85/100/115/130 mana, and that's just unacceptable now. She could hardly clear a whole wave with it at a few points in the game before, and now with the Athene's nerf, she can't ever fully clear a wave without auto attacks or a second E ever! And all of her other spells wouldn't help. Her Q only hits two targets, her W is her shield, and by blowing her ult to wave clear she's leaving herself vulnerable or in a position to really regret it if there's a teamfight and/or an objective she could have stolen.
Riot please. Do SOMETHING so Lux doesn't have to suffer a mana starved, awful CSing lane phase. If it's that difficult, just lower the mana cost of her E to maybe 60/70/80/90/100 and make it deal more damage to minions.