I've been thinking of this for a while now
Building 
on 
can be effective as it can be used to trigger her passive faster. Lux's Q/AA/E/AA/R Combo is kind of time consuming as her attack speed is low. Buying nashor's tooth can remove the time gaps between her Q,E, and R making her entire combo achievable in a second or so due to her Attack speed removing the AA Time delays between her abilities.
Blàdedancer1 votesYou should try it out and post it here, that would be a bit more constructive than posting the theory. I think it would help her combo be faster but I just don't think it's necessary.
Mysticman891 votesThe issue tends to be that weaving in AA's is only really safe to do when you catch someone out, or in early game.
In the former case, you can still trigger it at least once even with her low AS, and building a raw ap item for more burst with her abilities themselves is more effective, and in the latter case there are higher priority items to be building so you don't go oom.
Late game she has enough AP/range/CDR to chunk out opponents without her passive, while her opponents are probably built enough to murder her squishy self relatively quickly if they can get on to her, and hence she wants to stay back even if it means she doesn't get to proc her passive much.
edit: Unless they changed how lux's ult works with her passive, I'm pretty sure it procs her passive anyway, so Q/AA/E/R(/AA) would be the full combo, with no need to AA before the R.
ExHentai1 votesUlt pops her passive. Using a basic attack after R will give you an additional hit from her passive compared to your combo.
ForFoxSakes1 votesLux cant escape too well, especially if Q is missed. Getting in auto range is a big risk to take
Would rather just get more damage and blow people up in 3 spells without even having to auto
Prince Satan1 votesDon't. Just don't. The attack speed is completely irrelevant on a long range mage... considering your e and q have long cooldowns on lux, the attack speed to proc your passive is completely irrelevant when you can only proc it every 6 or so seconds after you q e combo, and your ult refreshes the passive anyway. Just a terrible idea in my opinion when you should be building raw ap/magic pen.
Quepha1 votesIn the late game you should just stop trying to proc your passive except for your ult. You're better off staying safe to keep up your siege than to get picked off by a hook or diver because you got greedy.
L0ve Is Blue1 votesIf you wanna empower your passive buy Lich bane its way better.
