Every city has its dark side, even one whose reputation is already of a questionable hue. Noxus - though its name is already invoked with a mixture of reverence and revulsion - is no exception to this simple truth. Deep within the winding dungeons that honeycomb the earth beneath its dark, meandering streets lies the real underbelly of this sprawling metropolis, a haven for all manner of malevolence. Amongst the cults, covens, and secret societies that call this labyrinth their home, LeBlanc, the Deceiver, presides over the Black Rose, a remnant from a lost, yet similarly unscrupulous time in Noxian history. Ruthless and seemingly ageless, LeBlanc and her ilk were a mainstay in Noxian political affairs during the era before the militarization of the Noxian government. In those days, this guild of powerful magicians met in secret to further their hidden agenda, and to hone a craft more subtle than that preferred by those currently in power.

While their exact motives have always remained mysterious, it was widely believed that the Black Rose was the true power behind the throne while the aristocracy still reigned in Noxus. When raw martial prowess became the ultimate determination of whose will held sway in the Empire, the Black Rose seemed to vanish overnight. Many believed that perhaps their time had simply passed, and that its members had put aside their quests for social and political dominance. When LeBlanc reemerged at the gates of the Institute of War, however, it became clear that these masters of shadow and flame had simply been bidding their time, waiting for a new global authority to emerge: the League of Legends.

''The world is very different for those who cannot see beyond what is placed before their very eyes.'' -LeBlanc, the Deceiver

Blanc is one of League of Legends crazies midder. Blanc can do insane burst damage when she gets her ultimate, which mimics last spell used with some more damage. Blanc usually has the right to mid, because she needs to get her ulti asap, to start the ganking. Blanc is very squishy champion and take place in same case with Twisted Fate, Twitch, Shaco, Lux etc..

So you want to stay as far as possible from enemy champions when laning/levelling and when in teamfights.

LeBlanc is crazy*** burst damage mage champion. When u are fighting against ur opponent use combos like these:
q-r-w-e or q-w-r-e

if u wanna get away from a gank quickly use your w spell and right after it use ur ultimate, which mimics the last spell u cast.

What comes to the item build u can variate the starting items. The one I've noticed to work are:

Replace dorans ring with mejai's soulstealer; which says get amplifying tome at beginning with health potion.

OR

Replace doran's ring with hextech revolver which gives u 15% spell vamp and 40ap; this also says u need to get amplifying tome at beginning with a health potion.

The spell variations are large. But i recommend takin teleport when playing 5on5 because u can get very fast back in lane.
The other spell option i take exhaust or ignite, those give u advantage on 1on1 and team fights.

This was my first build guide and hope u like it.