Get through 60 cards (or 100 if you're playing Commander), and then play Laboratory Maniac to win the game without ever needing to even scratch your opponent's life total
Then, it can accrue an incredible amount of card advantage for you, drawing more and more cards every time
Ixalan (and its sequel Rivals of Ixalan ) was more of a set focused on tribes and vampires were one of them, with the difference of being aligned in black and white
This mechanic is the perfect way to represent the classic Summons from Final Fantasy (also variously known as Espers, Aeons and Eidolons depending on the series entry)
If you like clever plays, Fallout lore, and wrecking the board with brains over brawn, this ones a blast
Any abilities that trigger won't be put onto the stack until Mystic Confluence is done resolving