One of the cards, Wormadam Sandy Cloak, was banned from use at the 2008 North American Professor Cup, thus making it the first specific card to be banned from any official event since Slowking from Neo Genesis. The card was dominant at the 2008 European Professor Cup, due in part to being printed in the set as an , a legal rarity for use in the Professor Cup (any rarity is banned from use in that event).