At least two rare variant Pokemon cards have mysteriously appeared in pre-release boxes for an upcoming expansion. PokeBeach, a popular Pokemon Trading Card Game news site, has reported that Cinderace staff promo cards were distributed in two Build & Battle boxes for the upcoming "Chilling Reign" expansion. PokeBeach has two verified reports - one from the UK and one from Kansas City - of the Cinderace promo card appearing in random boxes. The cards have two stamps on the artwork. The first is the standard prerelease promo stamp of Chilling Reign's logo on the right-hand side of the art. The other is a gold "STAFF" stamp on the left-hand side of the artwork.