Hearthpwn

Playing this deck, you want to survive for the first few turns and just get as much armor as you can or at least don't die :p You want to build the field with magnetics mechs and slowly kill your opponent. A lot of armor produced in way of using Boom's HP or just a lot of cards like Armorsmith and Eternium Rover makes you survive few more turns if your opponent would have more luck than you.

Combos

This first combo gives you a big BIG mech that creates some more smaller and usually is your win condition or at least makes your opponent sacrifice a lot of his minions or AoE. You can also boost your Security Rover with Wargear to make it even more tanky and hurtful for your opp.

Security Rover + Beryllium Nullifier + Bronze Gatekeeper

Of course Security Rover doesn't always make so many of his friends, but actually we can help him with cards like Whirlwind or even better Missile Launcher .

If you are a bit lucky and need some armor, you can use one or two Eternium Rover , Armorsmith , make them fight enemy's little minions and then throw Whirlwind

It's just a few of combos you can go and do with this deck, but trust me, even if it's pretty budget, it's really strong. Check it out, good luck and have fun :)!