Good guide

really nice, please complete it. we need more support lux guides

Great focus on combos and great explanation on all the areas of supporting! My first support build for sure! :)

I always love to see fellow support Lux guides :D

Some things to consider:

• Don't fix yourself on only one skill-order. All three of her basic spells have great utility.
• While is a pretty good damage items on lux for the small money, upgrading it to should never be considered for a support, its an incredible investment that you should put into aura and active items. Also because your AP will stay low compared to a full AP build, stick to your sheen.
• Recommended from my part: , at least for those new to support lux that don't know the extend of her mana costs yet.
• No support guide is complete without at least mentioning and Zeke's Herald, also some of the new AP-support items should be mentioned: , .

Extend your guide a little, for easy improvement. +1

-> you might also want to turn on "comment to vote" in the guide edit sheet.

a tip for your E, you can leave it on a tight opening so the enemy team is slowed when they want to chase.

This is correct (at least as far as my knowledge goes). It is the reason why you should never ever build it for Lux. If you are in range for an AA, you are already dead if the opponent team is slightly competent.

If you goal is an AP-support lux, i can recommend getting somthing like Sorcerer's Shoes, Liandry's Torment, shurelia's reverie, Twin Shadows, Rylai's Crystal Scepter and a Ruby Sightstone.

AP supports are kind of like AP carries, except they build some utility items to go along with their kit's utility(in this case a shield, a snare and a slow, plus an ultimate that can finnish kills or give vision).
You always want to be aggressive in such a lane, because of the support's need for expensive items(like Liandrys). Double GP10 is also recommended for the same reason.

I have to point out a questionable item choice (IMO).
Lich Bane??
If I remember correctly, Lich Bane only procs on AAs, and a Lux should never stay that close to a fight.