Alright! it's Lux that laser launching lady of luminosity! Here She is getting a little tired of yelling out Demacia! while another beam tears across the lane!
Lux aesthetically has a neat story because her original costume was changed after a then fan of the game gave it a makeover and the community has a fit on the forums. Now she works at Riot full time and is re-doing a lot of the original splash screens. Either way I believe that she was originally going with a magic girl/Sailor Moon type character design with some pep-squad baton twirling elements as well. Her laser looks great and the warp effect that her spells have look pretty cool in game.
In game I've seen Lux play a mean support but also just ruin the other team with insane damage. She ends up being a little squishy but a well place binding can lock down two potential gankers. Man does that ever get frustrating. Her shield can get pretty strong with enough AP and you can put that on your beefy champs and tear through towers in no time. Her singularity can check bushes which comes in handy and of course her Laser can snag kills from long range and surprise your enemy when they think they are safe by their tower. Anybody main this Light slinger? If you do then laser beam in your comments below!
-jouste the drawbarian