The staggered releases encourage scalping and other bad behavior, and the lack of individual booster pack sales means that the cards are gatekept behind higher price points
In the example, Kess wins out over flashier options by directly supporting the graveyard/spells plan within budget
This means that the only types that are truly missing are Bug, Ghost, Ground, Flying, Ice, Poison, and Rock
Let me just say this: This is an incredibly powerful commander
Though the Marvel Secret Lair release was horribly bungled, the fact that fans have been able to share their bonus cards so quickly does illustrate the one big advantage of the new Secret Lair model (from the perspective of players that is)
It is not that hard to get Vraska to her ultimate, she has a +1 that protects her and she starts with a fair whack of loyalty