So you're nerfing Lux's shield while ALSO introducing a bunch of new anti-shield mechanics?
Too fast, Riot.
Don't slam on the E-Brake when it comes to this sort of thing. First introduce these anti-shields, then see how Lux does before using your nerfgun. Don't do both at the same time.
Also, please don't remove her ult's refresh mechanic. [sg-soraka]