I hate to break it to you but I don't think Genesis Chamber works with those lands like you think they do.

zyphermage is right.

I'm pretty sure when the lands are animated that doesn't count as coming into play because they were already in play as lands

That's why they aren't summoning sick (if they've been on the field for long enough)

That makes sense. Cheers for the heads up

Needs more Shrapnel Blast (cowbell!)

Also I would drop the shock lands and go for basics due to Path to Exile being a staple in any deck with white

I like Galvanic Blast more. But I like the basic land idea.. I need to do more testing to decide on if I put in mountain, swamp or island ...

Why are you running Crumbling Necropolis . ETBT lands are a no-no.

Remove 1 land, 1 Cranial Plating and 1 Ensoul Artifact . Too many 2 drops that conflict with each other.

Metalcraft game on point. +1

I might go with Arcbound Stinger over Ornithopter ... i don't know... it feels a lot stronger to me because of the crazy power you can get off the Modular effect, although I realize it is a much slower card. Just a thought.

-2x Crumbling Necropolis

-1x Watery Grave

-1x Blood Crypt

-1x Ornithopter

-4x Ensoul Artifact (Too Slow For Affinity)

+1 Island (For PtE Targets, as Femme_Fatale Previously Stated)

+1 Blinkmoth Nexus

+1 Inkmoth Nexus

+2 Arcbound Ravager

+1 Welding Jar

You NEED to completely revamp the SB.

Ensoul Artifact speeds up affinity... and do not go down an ornithopter, it is more valuable than Memnite is. The land definitely needs some work then it is fine.

I'm sorry I hate this card but it would work well in here. Mutavault plus they are pretty cheap now may go down even more. But it works well since it can be an artifact creature

Have you considered putting in Prototype Portal to create a limitless string of creatures (EX: a ton of Arcbound Ravager s or Steel Overseer s would be pretty intimidating). I would either sideboard it or stick two in, in place of two Etched Champion s.

Thoughtcast always seems a little underwhelming in these sort of decks, you're not trying to win the card advantage front, you're just trying to get them dead. Maybe Shrapnel Blast would be better in that spot? I would also probably replace the crumbling necropolis with something that comes into play untapped. Maybe Shivan Reef , since you have very little black outside of the equip of cranial plating, and you have other black sources. I would also want at least 1 basic in your deck as a concession to Path to Exile so that you can at least make them pay the price for killing your dude.

Thoughtcast is definitely needed. You should at least throw an island or 2 in the deck like you just said. Also Mutavault does not count as an artifact, just a land creature with all subtypes. Many times you will thoughtcast for 1 blue and then drop those cards immedietly buffing Cranial Plating pre-combat even further. There are even opening hands you will drop all 7 cards turn 1 even if you are on the draw, and need a way to get out of topdeck mode on turn 2.

Check out the version I have uploaded if you like for ideas, which is one I currently have sleeved up. Play test it if you have a moment because I am open to suggestions also, maybe we can figure out the best main deck out. Affinity luvin

I disagree. If you dump 7 cards on the field, you don't need to draw more cards, you just need to get them dead. And your draws can be pretty unimpactful, if you're just drawing Ornithopter and Glimmervoid or something similar, you haven't done much and you'd probably just rather do 5 damage. It also gives your deck reach. I'm not the only one of that opinion, I've heard Brian Braun Duin say something similar. Of course, testing will be the best way to determine what you like better, I've just never been impressed with Thoughtcast.

Well whatever I have never regretted casting thoughtcast yet even if my affinity was low. Drawing more cards does help to get them dead so I'm not sure I follow that logic. Is it better to dump opening hand turn 1, then draw 1 card for turn and play it? Or is it better to play the hand turn 1, draw thoughtcast for turn, play it and play the cards drawn also?

Every deck wants to have some kind of draw in it whether they are aggro or otherwise, the only difference really is burn decks. Even those like to use something like scry to fix drawing. If you really want to get this down to 60 cards right quick here is what I would do to the main board:

-2-3 Etched Champion -2 Ensoul Artifact -1-2 Galvanic Blast -2 Crumbling Necropolis -1 Master of Etherium

+3-4 Springleaf Drum +3-4 Vault Skirge +2 Arcbound Ravager +1 Signal Pest +2 Island +1 Blinkmoth Nexus

I ended up leaving it too loose ended but you get the gist I think. Remove some 3 cost stuff and dependency on galvanic blast and ensoul artifact. I suggested adding both of those strongly before but I should've said not a full playset necessarily. Your main plan is still to play artifacts, not enchantment or burn. Those just augment what the artifacts want to be doing but not the main plan.

Whoops on mutavault being a artifact creature. What about Mishra's Factory

I agree with zyphermage on this one. Affinity/robots is crazy good.

drop the black mana since it isnt necessary since you should be equipping plating to etched champion which won't be targeted anyways, also i would add Unwinding Clock , and i would get rid of Welding Jar and Mox Opal

How about Etherium Sculptor or Wurmcoil Engine . Maybe sideboard Pongify just in case someone puts down Kataki, War's Wage

-4 ensouls +1 welding jar you really shouldnt be running the crumbling necropolis and i would try blink and ink moth nexus'