2 attempts. Second attempt was fairly easy.
Enhance-o Mechano can be replaced by Stormwind Knight.
If he goes t1 Aberrations, you should concede and try again. It is far too difficult to overcome.
Play on curve and control the board. You will eventually overwhelm him with your minions.
Shadow Bolt, Ironbeak Owl, and Mind Control Tech will help you recover from a Duplicate or break through a Sludge Belcher
Thanks to Kizaru1 for making a handy video demonstrating how easily you can win.