Awsome guide!

lux won't die instantly, she has a shield, a cage, and a slow, and if they are able to kill you before you can do those, then flash wouldn't make a difference in the first place.

Caught out of position->die instantly. Iunno about you but most people go straight for squishies.

lux does fine with soul stealer. Her range is great so she can keep stacks, and she doesn't need RoA. As for clarity, it is just fine with lux.

Mejais in all of them, but no rod of ages wtf. Btw lux can go without clarity...just not an escape summoner, cough flash.

I would suggest prettying up your guide.

add pictures (put double brackets around the name of something [ [ lux ] ] with no spaces)
add color
Space everything out so it isn't a large wall of text

good guide though. +1