As a creature type with a deep, rich history in Magic, vampires cover a lot of mechanical ground, but we can make some generalizations
The process, similar to GoatBots, is triggered by a webpage purchase, and you can opt to get an automated process or be delivered by a human (through a bot)
However, the downside to Pokmon ex cards is that, if defeated, they enable the opponent to the player who summoned them to draw two prize cards, instead of the usual one
If you build an Elf deck, for example, it'll likely be able to easily defeat most bracket one decks
And to help illustrate these point, I arranged them into three groups, from least to most harmful to the overall understanding of the game
This is a really good mana creature, even when the format doesn't have any good ways to combo off with it