Here is a thought experiment. How would you design a deck for Vintage without a side board?
I know some will say this is dumb, and it kind of is. Vintage has hyper-efficient decks that can win turn one. If you look at Vintage 70% of the meta-game is 4 decks
20% - Shops
20% - Paradoxical Outcome
20% - Xerox
10% - Dredge
Survival is only about 5% of the meta based on what have seen but I could be wrong so feel free to flame me out.
Moving on, if Vintage were a best of one format most people would play Dredge or Storm, maybe Paradoxical Outcome. I think that is too dumb to discuss. But a best of 3 where game 2 loser goes first and game 3 is a coin flip on who goes first, like they are doing for the Mythic Champs is interesting.
How would you build a deck for such a arch-type? Is Vintage even fun in a design like this?