The first group is the big big money: Black Lotus, all Moxes, play set of Force of Will, Ancestral Recall, Time Walk and a slew of other powerful and mostly very expensive cards.
The second shares a core set of cards with the first but does not have at least one of each of the cards in the lower half of the list of the first group.
For the first two groups, once you square away these great cards, you have many choices in what to add, and these decks have a lot of variety outside of these power shells.
The third group is effectively a build-around Crucible of Worlds.
That takes care of 50 percent of all of the top decks during the first two weeks. There is a great deal of variety in the other 50 percent. A handful have a smattering of Moxen and sometimes no Black Lotus, and there are even one or two that do not have any power cards, but these are the exception. Its fair to say that the power nine are still the ticket to entry to most Vintage competitive decks.
