# Mathematical analysis of the metagame (you be the DCI)

• @mickey.nobilis said in Mathematical analysis of the metagame (you be the DCI):

Someone needs to tell the Northeast that Workshops need to be scarce.

We can handle that. Just starting playing:
4x ingot chewer
4x ancient grudge
4x dack fayden
4x fragmentize
4x pithing needle
4x shattering spree

in every deck. They'll get the message. haha

• @Khahan I mean, that seems like overkill, but... yeah. Why don't people just do that to shops...? I mean. Ben Perry is in my metagame, running insano 2 card Monte and I put 1 mainboard Null and at least two more in the side of every tourney I know he's at... why the heck not?

For the life of me I've never understood why players don't just decide to crush certain kinds of decks that they know they will run into.

• For the life of me I've never understood why players don't just decide to crush certain kinds of decks that they know they will run into.

Because no matter how powerful shops is (or is deemed to be), the majority of the Vintage playerbase will always play blue-based decks. So you're asking to get crushed in any tournament if you played a deck with the cards listed above since the majority will be blue players.

So actually that is precisely what people do with their decks and why Misstep, Flusterstorm and such are played in the maindeck, despite being dead versus shops. It's to beat other blue decks that they know they'll face.

• @Hrishi I have gone to tourney's where out of aprox. 20 players, I can be certain that 5-7 of them are on Shops, or something artifact heavy... We act like this is a big data problem when in fact it's much more like a scouting problem. We know what people play. Vintage is the least fluid constructed format. To say nothing of just making a deck that crushes one archetype and plays close to even with some others, which is theoretically quite feasible. I love this thread, and this work is great so I am not trying to create a this vs that sort of false dichotomy... but seriously, decks like Landstill or Monored Hate get way overlooked because they are theoretically underpowered over thousands of games... when we can find out with even a little testing that they will smoke those three decks that keep winning down at your local card shop.

• @Topical_Island No, I get what you're saying. What I mean is, most people will play blue. It doesn't matter if mono-red will beat all other decks in the room. A fair number of people will not even consider playing such a deck because, well, it doesn't run Ancestral Recall or Time Walk or whatever card you want to think of. People don't often switch decks and instead play what they like to, and just try to adjust slots in their deck to consider whatever metagame they expect.

In your example even, 5ish people out of 20 would be on shops. I'd guess most others would be on blue. So most of those blue decks will metagame against each other, and then presumably shops stomps on all the inbred blue decks (using this as an example, of course not all events go this way but you'd be silly to build your deck to beat the minority in the room).

• @Topical_Island You are assuming that your metagame is an accurate representation of the rest of the format. It's not...looking at the major events, the average for Shops has been 14.8%. The average in MTGO Power 9s has been 12.8%. Not a single event in this span has reached the 25% to 35% you expect in your local metagame - the largest was 23% in the most recent TMD Open. Would you run a dedicated hate deck against 3-4 people in your metagame? Or would you try to increase your win % against the other 15-16 people?

P.S. How often do you win or top X your local events?

• @Hrishi Yeah. I mean, that's the theory anyway. A lot of time not though. Frank Singel just took down just such a tourney with Mono-red. Before that Ben Perry got there with the Monte Deck I mentioned. The dichotomous layout of the meta seems a little bit like a self-fulfilling prophecy to me. I simply wonder why more folks aren't interested in a deck that says... "You know what, I'm gonna go 50/50 with blue and just rip artifacts a new one."

20 decks in a tourney, 6 Shops, 2 Eldrazi, 1 Oath, 10 other blue decks and then you. (That's just going by the macroscopic data. I'm sure there is a card shop on the Atlantic Coast somewhere, in which you could find 10 Shops decks in a field of 20) If you play 6 matches on the day, you'll play 3 against blue 2.5 against Shops, and .5 against something else... roughly. Assuming that the tourney pairs winning decks together for ensuing rounds, and assuming that the inbread blue decks tend to lose to Shops, then you might actually see more Shops on the day.

A deck that can go 50/50 against blue and crush shops looks pretty good in that environment. If you can win early in the tourney against a couple tempo mentor decks, you likely take home some nice prize money. Interestingly, a deck that is 50/50 against Shops and crushes blue (I think the creation of this deck is actually much hard though) would also be a killer deck in these tourneys.

• What deck goes 50/50 with blue and crushes shops?

• @evouga Shops tuned for the mirror

• @evouga exactly! This is the right sort of question to be asking. But does anyone think about the math problem like this? Or build in this way? Or even select in this way when looking at what to play. I can tell you people largely don't because there is not an elastic change in what people play, based on metagame population shifts.

@ChubbyRain I promise you I'm not. The hypothetical 20 player tourney was taken straight from top 8 finish percentages. You will likely get slightly more rogueiness in a live field, but not much. Maybe you play 1 to .5 rogue decks more than that hypothetical field. What I am assuming, is that people would like to stroll into their actual tourney on Saturday and cash. (A big assumption. Some people don't and will tell you they don't care, which is cool.) So to do that, you should look at your actual metagame and beat that, rather than the overall metagame where you "get crushed" if you mainboard shops hate... something I don't believe anyway.

WAF/WHF

Looks like your connection to The Mana Drain was lost, please wait while we try to reconnect.