This error type does not get much more dramatic than the example pictured above, from the Italian EX Crystal Guardians set
You could even get up to SIX luxury rares in the same pack, this time around!) If you missed out on the first Rarity Collection, heres how it works: Every card in the set is available in every rarity, with 3 standard rarities (Super Rare, Ultra rare, Secret Rare), and four special luxury rarities: Quarter Century Secret Rares (celebrating the 25th anniversary with tons of sparkle and a watermark logo!), Platinum Secret Rares, Prismatic-style Collectors Rares (previously available only overseas), and Prismatic-style Ultimate Rares (with special 3D varnish, and also available only overseas until recently)
In fact, I can think of at least two other cards for which exactly one copy exists
This card however would only increase the length of the game as it would allow a player to shuffle their discard deck back into their draw deck
The set symbol plus the collector number pins down exactly which card it is, and the rarity symbol tells you its tier
