My friend and I play Draven, Lux and we are scary as all crap, you have no idea the shit you can pull of with communication and a root. lol
Ofc everyone hates the “Im lux support! [starts dorans ring, doesnt build SS, ect]”
Those are the bad supp luxes.
Multiple of my friends… Ranks bronze to plat have been my carries while I’ve lux supported. Even full support build, I can q-e-r-e and kill people MYSELF. Sometimes an AA is needed, Sometimes they die from the E popping on its own and not the ult, sometimes I just need to Q-AA-E-E and they die, without me wasting my ult.
BUT Most of those are Accidents, Teamfights, or “I’m alone, they started it!” Fights.
Lux has good zoning, she has just enough CC to protect ADCs who have an escape- shes not good with say twitch, because his escape isnt reliable- but with the right carry, and or as you said the right communication, she can make an enemy lanes life hell.