This deck combines the early board control power of odd rogue with the OP mech cards Iron Sensei, Tinkertown Technician, and Wargear. Your opponent has to clear all your mechs or your board will get out of control quickly.
Iron Sensei - Serious snowball potential. If your opponent can't remove it ASAP you probably win
Tinkertown Technician - 3 mana 4/4 that gives a 1 mana Vilespine activator
Wargear - In many cases it's a 5/5 with charge for 5
Fel Reaver - This card is insane. Your opponent will have been scrambling to remove all your snowball minions in the first few turns. They think they need to be afraid of Fungalmancer. Then you hit em with a 5 mana 8/8. If it sticks you can often buff it further with Iron Sensei or Wargear and SMOrc. The drawback hardly ever matters, other than telling your opponent what they don't need to play around (for example, if Leeroy Jenkins gets burned).