With no official distribution planned for Japan, the extreme scarcity combined with the undeniable popularity of Monkey D
Whereas, cards like Hades - Lord of the Underworld, Snow White - Well Wisher, Lady Tremaine - Wicked Stepmother, Nick Wilde - Wily Fox, or even Mufasa - Betrayed Leader I would consider passive card draw engines, but serve different purposes when used correctly
Collector Boosters Thwip out the special treatments
I am used to mill decks wanting to delay things as it works in their favour however much of the strength of this kind of deck is being so quick that loads of things that might be trouble simply won't have the time to get online
Its alternate art status, combined with the enduring popularity of Sylveon as both a character and a Fairy-type Pokmon, ensures high demand