
I will start my logic behind each card run in this deck (which are different than casual Mech decks)
1 Mana Wyrm: Because we usually use this minion to get rid of enemy spells or monsters ( They see this creature as immideate target and destroy it since it has potential to deal a lot of dmg. ) And also, sometimes missleads enemy that you are a classic tempo mage. I feel like two of these in the mech deck is an overkill. It has almost 0 contribution other than 1 mana drop.
1 Unstable Portal: Even though i love the RNG unstable portal brings to deck, i believe 2 is overkill here as well. This deck doesnt have a spell cost reduction. Mana Wyrim Unstable Portal Opener is one of the greatest open this deck can have. (Unless unstable portal gives sometng that contributes greatly to tempo plays, then it is THE greatest :D)
1 Annoy-o-Tron: Because two of these usually kills the tempo, but one is a must because of all the aggro decks goin on.
1 Polymorph: Boar: I choose this card over the other Charger drops and Leeroy, because this also can be used on enemy taunts or big creatures. Works much like sheep. But has potential to be used offensively as well. + Another trigger for Archmage Antonidas
1 Blood Knight: Tricky card to include in deck. I enjoy having it because i can combo it with Annoy-o-tron as well. So if Annoy-o-tron has its shield or its turn 5 i can have a 6/6 drop + 1/2 taunt for 5 mana. Other than that all of those paladinds will QQ to this card when played well.
1 Harvest Golem: Because when playing with tempo and your board is cleared you want to have a Goblin Blastmage or Tinkertown Technician activator. Also this is a minor counter to weapon using classes.
1 Kezan Mystic: Op against other mages, hunters, paladinds. Mostly included to counter Freeze mages and hunters. But can come in handy against paladins if you are lucky :).
1 Azure Drake: Because enemy has to deal with it. + Draw a card and +1 Spell dmg. I dont think noone has to defend this card.
Archmage Antonidas: Mech deck. Spare Parts. Big Finish. Come Back.
Dr. Boom: Insane Tempo card + Can bring back the game that is goin to the other way. Also boom bots are mechs
Great OpeningsWhen goin first:Turn 1: Cogmaster,
Turn 2: Any 2 drop mech. (Mechwarper,Snowchugger, Annoy-o-tron)
Turn 1: Mana Wyrm,
Turn 2: Unstable Portal
When goin second:Turn 1: Coin -> Mechwarper + Clockwork Gnome
Turn 1: Cogmaster,
Turn 2: Coin -> Mechwarper + Mechwarper + Snowchugger + Clockwork Gnome
Turn 1: Cogmaster,
Turn 2: Coin -> Mechwarper + Snowchugger
Turn 1: Cogmaster,
Turn 2: Coin -> Spider Tank
Other than something similar to these, your openings might be unlucky. (
Note that with the huge openings, if enemy has big aoes like hellfire etc you will be stuck with no cards at hand. This deck has no draw potential other than Azure Drake)
I included heartpwn link below so you can click view in deck builder to remove and add your versions and explain the removals and additions.
Deck List:
http://www.hearthpwn.com/decks/341377-extreme-mech-deckThank you for contributing to discussion.

Nice day!
This post was edited by ExGamer on Oct 2 2015 07:40am