I have drafted the funniest arena deck, and have squandered it away by actually getting losses.
3 Innervates
4 Swipes
2 Spectral Knights
1 Chillwind Yeti
1 Ancient of War
are the highlights. My early game isn't that good if I don't draw the Innervates, and all the removal I have means I have surprisingly few creatures to start dealing damage. However, when I draw the right opening, it is completely hilarious. One time, I turn 2 double Innervated out an Ogre. In the game I just played against Priest, my turns went
T1: Coin + Innervate, Yeti
T2: Acidic Swamp Ooze
T3: Innervate, Spectral Knight
T4: Swipe to clear the small things he had left
T5: Spectral Knight, opponent resigns
Just, the craziest blowout games I've ever seen, as long as I draw the right cards.