Hey Riot, if you're doing changes to Lux, why not give her E the Gragas Q treatment?
I don't main Lux or even play her really, but I figured I'd try throwing out my 2 cents seeing there being work done on her kit on PBE right now and see what comes from it
It's a generally unhealthy ability in her kit ( as brought up by Repertoir here) , making it a difficult thing to balance, and which I believe a good part of this is caused by the change it got where it can be activated instantly as it lands back in season 5 if I recall correctly
Causing it to have the very high limitations/costs to use it, like the mana cost on it being higher than her ult's mana cost of 100, just at it's level 4 rank at a whopping 115 mana
So why not take advantage of that, change it, thereby allevitating some of those counter play lacking issues by making it like Gragas' Q and make the increased damage rewarded by landing her stun on someone?
Let me go in a bit of detail to explain -
By lowering it's initial starting damage by a fair amount (say... 30~40%) for instant casts, that would at least give it more counter-play and allow them to lower it's mana cost a bit or something due to that
Then for those who let it wait 2 seconds (which is how long her Q snare lasts, you can see where I'm going with this), can then allow it the same damage as it does currently on the live client (or maybe even slightly more), thereby rewarding people for landing their Q on someone and giving it more synergy with her kit
bonus addition explanation edit seeing conversations so far -
This would also solve her issue with her subpar waveclear, because a focused minion damage increase can also be added to this waiting damage increase mechanic
Again as a disclaimer - I'm not a Lux main or play her all too much really, but I'm just throwing this idea out to help in fixing up her kit as Riot is currently experimenting on PBE
So that's all I got to chip in and hope this helps in some sort of way
has 2 CC allowing him to fully use his Q (E+R, and yes even if it looks "awesome", the flash Q+Flash+E+R+Q combo is really easy to do). Lux's only ability allowing her to use her E fully charged in this case would be her Q, and since she's supposed to poke, reducing the damage if not charged is a bad idea
and the like, where the ulti isn't a powerful ability in and of itself with just 1 cast. Your suggestion is a start but not sure if it'll fix the root of the problem