I bought Le Blanc a couple of days ago, and I must say, she is a very fun champion. She can do crazy bursts so crazy she makes her joke of making your lifebar disappear more than just a joke. i haven't played a burst champion extensively. i do have akali, but she can also sustain some damage with her low cooldown mark of the assassin and auto-attack combo. with le blanc, she distortions in, hits the double sigil, and usually w out, unless the target is nearly dead and with that you hit the enemy champ with ethereal chains.
Also, I just recently uploaded a couple of videos of some amazing moments playing with friends on a normal pre-made. the first one is a Swain escape mechanic against Nocturne. I thought it was pretty funny that Swain just limps away casually after getting ulted by Nocturne AND Caitlyn.
EDIT: According to xPRTx, Nocturne didn't actually do damage. He flew onto the Nevermove, but only Caitlyn was able to hit her ulti.
And for the second video, my friend Ryangi (IGN: BatboiIsAwful) bought Ashe and played her for the first time, but he did pretty well with her. He's not the guy who plays these kinds of games, but he still never ceases to amaze me how good he is. We were losing a match but not by much, until he hit a crossmap arrow that stuns Mordekaiser for max duration and slows 3 other champs, allowing my friend Jai Huynh as Katarina to nuke all of them with Death Lotus, getting an easy tripProxy-Connection: keep-alive
kill, then cleaning up Mordekaiser with my taunt as Shen.