I kept looking at magic sites and articles and I saw an article by Aaron Conole on Mtgcity about an optimal decklist that was around type 2 preRavager that used Atogs and cheap artifacts.
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I figured that once ornathopters been ninja'd it gets useless sac it to atog and I've got a beater.
The only problem I see here is that your ornithopter sits in your hand during combat when you ninja. Maybe there's an additional way of using this effectively, but I'm not sure.
ALSO, one thing not to forget is that chalice 0 is running around. I'd go with affinity-esque creatures, and try not to get clogged up at the 0cc slot.
4 Mishra's Factory
4 Seat of the Synod
2 Great Furnace
4 Volcanic Island
2 Wooded Foothills
4 Flooded Strand
2 Island
1 Strip Mine
Creatures
4 Mistblade Shinobi
4 Ninja of the Deep Hours
4 Atog
4 Ornithopter
2 Phyrexian Walker
Artifacts
3 Umezawa's Jitte
Instants
4 Shrapnel Blast
4 Force Spike
4 Force of Will
4 Brainstorm
1 Misdirection
K, I'm gonna address your card choices, from a purely theoretical standpoint, as well as possible changes to make.
Shrapnel Blast is somewhat usefull it seems that when I've used it so far however a magma Jet or Lightning bolt may have been just as effective without having to sac an artifact on the plus side however 5 damage is alot more than 2 or 3 when the opponent is at 5 life.
Shrap. blast can be a house, especially since 5 to the dome is no joke. However, at 2cc + an artifact, you're committing a lot for that 5 damage. Think about this, for 1 additional blue mana, you can turn that artifact into 11 to the dome ala colossus. I'm not saying you should run tinker-colossus, but I AM saying that you need to look at other options especially in the 2cc slot.
Mistblade Shinobi and Waterfront Bouncer. Bouncer is arguably better as his ability can be used anytime not just when it hits the player but shinobi ninja's out an ornithopter turn two and bounces back a goblin lackey.
Shinobi are there, I'm guessing for game vs. workshop fatties, and colossus. However, is 4 the correct number? Like, a 1/1 isn't super hot, and even less hot when his conditional ability won't even matter half the time.
Wastelands I don't actually have a set(Proxy Meta) although I know I should invest in them.
I would say that these are the most important tool you will have.
Possible cards I would test with this (again, just theoretical):
1. Tinker->colossus, just because it's a super clock, and you're in no shortage of artifacts.
2. Disrupt, maybe as a 2-of.
3. Annul, for handling stax and playing into mana denial. 3sphere ends your deck.
4. Disciple of the Vault. As Rich said, this dude hangs out with atog to make a rapid fire machine gun, mowing down life. Sure, it adds a 3rd color. It's worth it.
5. Thirst for Knowledge. This one is a little odd, but you have plenty of artifacts to support it, and it says "Draw 3 cards"
6. Spellbombs. Instant Speed discard (necrogen), bounce (aether), or shock (the red one) OR you get to draw cards.
Those are what I can figure off the top of my head.
-Aaron