Lux
Burn Away the Shadows
Lane harassment and consistent damage output.
Sorcery
Empowered abilities and resource manipulation
Summon AeryYour attacks and abilities send Aery to a target, damaging enemies or shielding allies.
Manaflow BandHitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana.
After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds.
Absolute FocusWhile above 70% health, gain extra
adaptive damage .
ScorchYour first damaging ability hit every 10s burns champions.
Inspiration
Creative tools and rule bending
Biscuit DeliveryGain a free Biscuit every 2 min, until 6 min. Consuming or selling a Biscuit permanently increases your max health and restores health.
Magical FootwearYou get free boots at 12 min but you cannot buy boots before then. Each
takedown you get makes your boots come 45s sooner.
Adaptive Force
+9
Adaptive Force Adaptive Force
+9
Adaptive Force 
Health Scaling
+10-180 Health (based on level)
Why Summon Aery
With Aery you can proc it repeatedly in lane for poke damage as well as defensively in teamfights for an even bigger shield.
Why Manaflow Band
Manaflow Band is a great option for Lux when you are looking to do a lot of poking in the early game. Lux's [E] is one of the highest mana cost spells in the game and if you use it when Manaflow is up you'll sustain a lot more poke than you would otherwise be able to.
Why Absolute Focus
Absolute Focus on Lux allows you to abuse your long range poke for additional damage without taking any damage in return.
Why Scorch
Scorch's early game poke damage lets you set yourself up for level 6 kill threat and provide pressure during the laning phase.
WhyBiscuit Delivery
Biscuit Delivery greats you reliable and strong sustain, especially in close all-in lane fights where the last minute healing can pay off big and help you survive.
WhyMagical Footwear
Magical Footwear's gold-efficiency is great for mid-game fights where the extra 300g can be the difference between completing an important item.
Light Them Up
Lane harassment and consistent damage output.
Sorcery
Empowered abilities and resource manipulation
Arcane CometDamaging a champion with an ability hurls a damaging comet at their location.
- Manaflow Band
Hitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana.
After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds. 
TranscendenceGain bonuses upon reaching the following levels:
Level 5: +5Ability Haste
Level 8: +5Ability Haste
Level 11: On Champion takedown, reduce the remaining cooldown of basic abilities by 20%.- Scorch
Your first damaging ability hit every 10s burns champions.
Inspiration
Creative tools and rule bending
Triple TonicUpon reaching level 3, gain an Elixir of Avarice.
Upon reaching level 6, gain an Elixir of Force.
Upon reaching level 9, gain an Elixir of Skill.
Cosmic Insight+
18 Summoner Spell Haste
+10 Item Haste
Adaptive Force
+9
Adaptive Force Adaptive Force
+9
Adaptive Force
Why Arcane Comet
Arcane Comet can be difficult to land reliably, but the root from Lux's **[Q]** and slow from **[E]** make it far easier.
Why Manaflow Band
Manaflow Band offsets some of your high mana costs and allows you to continue your lane harassment and poke during the laning phase.
Why Transcendence
Like most mages a large portion of your damage comes from spamming abilities with CDR.
Why Scorch
Scorch is a great source of reliable lane harass damage that adds up over time to build kill pressure.
WhyTriple Tonic
Lux's biggest weakness is her lack of mobility and proneness to getting ganked. Perfect Timing cna come in clutch if used well to avoid damage on an incoming gank and will provide a reasonable gold value toward your 3rd Item Zhonya's.
WhyCosmic Insight
More cooldown reduction is nothing but pure bliss for Lux. Cosmic Insight get even more value if you build Zhonya's.