i always ask my jungler if i can have the blue buff if they say yes i get them to leash and kill it with my basic attacks and lucent singularity, i like to poke as much as possible with lucent singularity light binding combo and at lvl 6 if they are low enough finish them with final spark

i like to fire a lucent singularity at the caster minions and attack the melee minions and then when they are dead move back to the low hp caster minions and finish them off i get a lot of gold this way

i always take blue buff when i can because i can use final spark more and in early game lux is very mana hungry so it helps deal with that

as you may know most teams resort to all mid and the game becomes one big team fight this is where my cool down reduction comes in i stay in the back applying her passive and as my team pushes them away finish them with final spark and if i safely can without wasting it ks my team :3

kind of like mid game stay to the back and use light binding and support your teammates with the shield and don't let them heal at base

at the end of the game i like to do a final spark just as a cool little thing that happens when the VICTORY screen pops up

we don't always win the mid lane team fight when this happens it is best to get the team in a coordinated position to defend your base if you can ace then go kill baron if not it is like every loss there is nothing you can do

one last tip (i couldn't find a better place to put this so...) when using lux's shield always aim it where you are running so the shield refreshes faster.