Closest thing I can think of is the Feldar Guardian banning when they released a new set but didn’t ban Feldar Guardian with the initial B&R announcement despite public outcry. The addendum 2-3 days later cited MTGO league data. Hardly an intentional test, but it is an example of using Magic Online data for decisions like this.
Edit: I think the sample size is going to be much more robust for Legacy.
I think its less about the number of games being played, and more about anyones ability to properly adjust to what will be a new metagame. I mean, I can take a Blue/Shops deck and jam in more Dredge hate to the main deck for a few weeks, but its unlikely that my first iterations of these decks are optimal in the slightest.
a heads up to everyone, but on Rich's stream it was discovered that this mulligan change has broken serum powder. if you powder 7 you can also powder the next 7 even if that second 7 doesn't have a powder in it. MTGO is quality software that is well tested.
A week before the only Legacy GP of the year, they're going to configure MTGO to play by a different set of rules than real magic. Fucking awesome.
Well at least paper magic and MTGO don't share a B&R list since they are so different.
Sylvan PO did win the first challenge. Sylvan library is one of the cards that can be exploited with the new mulligan rule as it lets you recoup the card disadvantage from mulliganing more aggressively. Overall, not much change in established lists in the first challenge with the new rule.
10-0. Got another Trophy on stream. Cut Mentor from the list. It was too slow...
I also ran a twitter poll of the London mulligan as I was curious what people's opinions were (and also wanted to see how perspectives change over time). Sample size is small but it seems the majority of people are still formulating an opinion (which is great as I'm glad people are starting out openminded - and those who had an opinion are probably those that had already played several leagues on MTGO with the new rule active). I plan on repeating the poll this weekend.
I'm not on Twitter so I'll chime in here. In the abstract I like the London mulligan a lot. It feels much better especially when you get two bad openers in a row, and the experience of using it really won me over. Taking the same decks from a few weeks ago and applying the new mulligan rule to them just makes games more pleasant, on average.
Which is why I'm so glad that you were able to demonstrate what happens when people don't play the decks from a few weeks ago. The key point in the Sam Stoddard article about this mulligan rule was that it influenced deck design, and wow is that ever borne out by your Outcome list's evolution. I think that's about as clear an illustration as possible that the London rule is ill-suited for Vintage, if the goal is simply to reduce the frequency of mana-screw without substantially impacting deck design along the way.
@craw_advantage Thanks for taking the time to write up your thoughts. It's similar to what I've experienced - I didn't expect to like it, but I do. It adds more skill and consistency to typical games of Magic.
For Vintage I don't think the London mulligan is incompatible with the format, but the current restricted list is certainly not optimized for London. Vintage is by far the hardest format to fix though given the structural constraints. It's also the format least likely to affect DCI decisions.
@chubbyrain said in London Mulligan Coming to MTGO:
For Vintage I don't think the London mulligan is incompatible with the format, but the current restricted list is certainly not optimized for London.
Something that occurred to me after I posted is that I assigned a certain negative value to "influences deck design" because it was treated as a negative in the original Stoddard article, but that's not really fair--any mulligan rule would influence deck design, including the presence or absence of a mulligan in the first place, and we don't need to anchor our reaction to London to the idea that the deckbuilding trends encouraged by Vancouver are ideal. It occurs to me that there might be some other neat possibilities opened up as well--if mulligans can be an intentional part of your gameplan in combo, can they be part of your gameplan in aggro? Midrange? Could this be Sphinx of Foresight's time to shine at last? So I guess I'm coming around after all, provided that we can also get the appropriate DCI action to go along with it (which unfortunately isn't a given).
The biggest thing for me is that the whole myth/fear of Dredge/Combo taking over the format seems to be debuffed to me by these last couple weeks. People haven't really added so many anti-combo / anti-dredge cards to their main decks to even make that happen either.
While MTGO shifts much more frequently than paper, it doesn't change that quickly. That said, there is a trend to more Bazaar decks and fewer Blue control and Shops decks.
Week before the London:
What metrics are we using? If Bazaar becomes 1/3rd of the metagame, is that taking over? Do people really have to run main deck hate for it to be a healthy metagame (I was beat by MD Relic of Progenitus out of PO the one league I played with Dredge)? What about PO? I really think a 3 week trial is insufficient to gauge the actual metagame effects of London. This was probably a PR move to expose players to the rule change and give them a chance to experience the mulligan rather than have the MC be their only interaction with it.
Small samples are sufficient for telling you significance if there is a dramatic change. There isn't a dramatic change. Based on your numbers:
Number of outcome decks in top 32 is equal
Bazaars are slightly up
Shops are slightly down
Control/Gush is slightly down
Others are roughly the same
If Bazaar was that dominant now, I'd more expect to see it winning the tournament and getting more representation in the top 8. Only 2/10 in the top 32 made it to the top 8 (expected value would be 2.5/10).