Mulligans
Goal of this deck is to draw Wrenchcalibur and buf it with bunch minions/spells (Upgrade! Grimestreet Pawnbroker Captain Greenskin).
When your weapon is destroyed just return it back to your hand with Rummaging Kobold.
Repeat.
You have really strong value cards in this decks such as Dr. Boom, Mad Genius Dr. Boom Blastmaster Boom Iron Juggernaut to beat control decks. For aggro/tempo you are running 2x Eternium Rover 1xDrywhisker Armorer 2x Dyn-o-matic. You can remove something like Forge of Souls or 1 Acolyte of Pain and 1 Rummaging Kobold to add Whirlwind or Warpath against aggro.
You can shuffle up to 15 Bombs into your opponents deck and 1 Mine from Iron Juggernaut.
Have fun with this deck. Peace.