I've received a lot of "likes" on this post, and firstly wanted to thank everyone for that. :)
secondly, I thought that I'd give a little bit of background into why I chose the cards I did.
-- etched champion is a blocker, especially against lifelink / DT, and godly as an attacker.
-- steel overseer is slow, but a great choice to help buff, and an obvious target for burn / leaks
-- memnites and ornithopers are cheap and help me get metal craft out fast. they also will gain in strength --cosiderably fast, and help me keep the mana curve low.
-- signal pest is obvious. :) it's about a cheap artifact to boost up with tezz and/or ajani and/or steel overseer and/or tempered steel. and it has battlecry! :)
-- mox opals are obvious as well. I run three because they're basically always worth having in my main hand, and I'd rather have 2 in my main hand, and have one dead card, than i would not have any. so 3 is a nice number.
-- tempered steel is just a brutal card, anyway you look at it, and white control. they will use revoke existence on that instead of an artifact. :) which is always nice I suppose.
-- lands are such that I have the maximum %chance (yes i calculated) to get my colored spells out. tempered steel is still rough to get out though, 2 white mana, but i can still play it on t2 if i have a plains and mox :)
-- Tezz... Tezz is mostly for the -1 ability, honestly. I would kill him off most of the time, but late game if my artifact creatures are strong enough, I can +1 and then -4, and have game. easily... There have been a few times recently where i've won b/c of his -4 though. It works well in such an aggro-esque deck.
The sideboard is obvious, except for accorder paladin, he's solely for outracing valakut (b/c they won't block with their cobra, so it'll help me get in extra damage. before you know, they wreck me.
-- If you're interested... I'll lay out my best turns, assuming im on the draw,
t1 = plains, mox opal, memnite, memnite, memnite, signal pest, signal pest
t2 = plains, tempered steel
t1 - don't swing, b/c i can't. Ii've played 7 of my opening hand, meaning i'll have an empty hand if i play first, so I basically just need the draw with this insane hand. :)
t2 - 3 memnites swing for 5 (+2 atk from pests, +2 attack from tempered,) 2 pests swing for 3, (+1 atk from other pest, +2 atk from tempered steel) that's a total of 21 dmg on turn 2. (5 x 3) + (3 x 2) = 15 + 6 = 21. = I win if they have no blockers. :)
Anyways, I hope you can pull a few sample hands in your spare time, see if you like it, but most of all I hope you all enjoy seeing the deck! i hope it gives you inspiration and helps you out! :) I have the deck and have been running in quite a bit. Generally, I win, out of 3 games, 70-80 % of the time against t1 decks. It's brutally good guys. :) esp. for a homemade deck.