Hearthpwn

As a mech rogue, mech paladin, and mech mage player for 2 years and counting, I personally find that a lower curved deck plays out better for the higher ranks. As I am currently rank 11, I would like to offer some insight for those looking to start with mechs. I dont like Dr. Boom or loatheb as they have little to no synergy with the overall deck. While Dr. Boom does act as a good win condition, your burn spells should do a good enough job that you wont need such a high cost card in the deck. If you run book of specters i would try to go for less spells and more minions. I would like to point out your deck lacks early presence. And the higher curve puts you at risk of bricking vs control where you want to be the aggressor and force aoe early.

For those who want a faster variant, here is my current list and an explanation of choices

clockwork gnome x2

cogmaster x2

mana wyrm x2

annoy-o-tron x2

frostbolt x2

mechwarper x2

explosive runes x2

primordial glyph x2

snowchugger x2

arcane intellect x2

spider tank x2

tinkertown technician x2

fireball x2

goblin blastmage x2

piloted shredder x2

My idea with this build is to be more board oriented and use the burn not to go face but to defend the board. Glyph is your randomizer to search whatever you need for that situation. Explosive runes for aggressive matchups and extra reach when there are lots of taunts. No loatheb, dr. boom or antonidas as I do not believe these cards really impact the next turn much. While loatheb is a great option, many decks play a good number of minions that the only matchup you want it in is big priest and sometimes cubelock. Otherwise antonidas and boom are too slow compared to the rest of the deck. Its up to you how you want to orient your deck but as I mentioned I feel mechs are more aggressive and should be more focused on the first few turns. I hope you enjoy my list and please feel free to let me know your thoughts and comments.

Edit: If you would like more options you can substitute explosive runes for unstable portal and 1 snowchugger and piloted shredder for 2 gorilla bot a-3.