It appears in the 2005 Ex Deoxys TCG expansion
Subtypes are ways for the game to make meaningful mechanical information on the type line of the card, and, if youre wondering, by volume, most of those subtypes are creature types
However, while the Amber/Ruby is a better deck overall, they both contain enough good cards that those looking to get started or just try out the latest Disney Lorcana cards can pick either up and have a good time
Theyve been name-dropped in later series, and the beloved nature of these cards means even people who came into the game long after the initial excitement over the original manga and anime had subsided are aware of their status
Liliana, Waker of the Dead Liliana of the Veil is a big blank if your opponents dont have cards
Its nice to see a normal full art supporter card on a list of top cards for a set