You will be shoved under tower; your goal is to maintain high HP and prevent a massive CS deficit while waiting for jungle intervention or a mistake.
Surviving the laning phase without giving up more than 2 plates, then utilizing Bard's roaming and Tempered Fate to catch the immobile enemy backline.
Getting poked down below 40% HP early, leading to a dive or losing the tower before 10 minutes.
Respect the level 2 spike: Lux Q + Caitlyn Headshot is 50% of your HP.
Don't leave Ezreal alone if the wave is pushing away from him.
Save R to interrupt the Lux/Caitlyn ultimate combo.
Watch out for traps hidden behind the tower model.
They want to shove you under tower, place traps at your feet, and poke you until you are forced to recall so they can take plates.
Levels 1-5 and after Caitlyn completes her first lethality/crit item.
Avoid standing in the wave (prevents Lux from double-tasking), keep HP high with W, and punish Lux when her Q is on cooldown.
Guardian for the shield against burst combos; Font of Life to give Ezreal sustain when you land Q.
Max Q for damage/stun duration, but put 2-3 early points in W to handle the heavy poke from Cait/Lux.
Locket of the Iron Solari is mandatory to survive the Lux burst combo and Caitlyn's ultimate.