Mulligans
General Mulligans
In the mulligan you're looking for your combo pieces. Meat Wagon is you're priority. Everything else kind of gets the ball rolling.
This deck uses Mech synergies to pull out and destroy Mechano-Egg.
The combo is: Meat Wagon followed by Scorp-o-matic to pull out Mechano-Egg. Crystology helps pull them both from your deck. Galvanizer also helps make this combo happen faster. Scorp-o-matic can be used to destroy either Meat Wagon or the summoned Egg.
The deck isn’t reliant on this combo. If both eggs are in the hand before Scorp-o-matic or Meat Wagon are drawn, or if Crystology pulls the wrong minions, there is enough mech and magnetic synergy to be viable.
I’ve included Adaptation to allow situational buffs for your minions. Liquid Membrane and the stealth option being the ideal buff to protect our combo pieces from Silences, Polymorphs, and Hexes.
Other Card Choices
Glow-Tron: This is basically Dire Mole but a mech. It’s not even a dead draw later in the game due to Magnetic.
Upgradeable Framebot: 2 Mana 1/5 is a solid body and an obvious target for Magnetic minions.
Bronze Gatekeeper: Play Framebot on turn 2 followed by this on turn 3 and you have a 2/10 Taunt on board.
Divine Favor: Card draw
Annoy-o-Module: Solid body and Magnetic.
Weaponized Pinata: Seems like a fun card but could be omitted for something else.
Giggling Inventor: VALUE!
Wargear: This is a card that will help us later.
Zilliax: I don’t see any mech deck being complete without this.
Val'anyr: Not essential but a useful buff for our minions.
Kangor's Endless Army: Late game closer.
I’m sure there are similar decks floating around but this is the product of my own theorycrafting. Looking forward to trying it out and tweaking it. Let me know what you think and if you have any suggestions.