This one worked quite well:
Warrior: Bolster/Stolen Goods/Public Defender/Beligerent Gnome
Some people conceded while deciding what to ban.
Also enjoyed this one:
Mage: Daring Fire-Eater/Fallen Hero/Ice Walker/Primordial Glyph
I was one of the first, that thought of to using (Prince Malchezaar)
My opponent banned Yogg! and during the match I had played two Ilidan Stormrage. He was not prepared for this!