King & Crooks "Empire Bloodlines"
Not yet eligible.
Not sure I know the difference between a reveal and a gaff card.
I nominate origins:
A reveal card will usually have a hidden image of a card or a hidden word. If I made a deck with a joker that has a card placed in his hatband, hand, shirt pocket, etc., that would be a card reveal. Blaine often uses the Queen of Spades for a reveal. Card backs can also be used to conceal a reveal - before the ban on altered backs, Ellusionist had a card that had a reveal written in script and hidden in the line work of a Bicycle Rider Back in red.
A gaff card would be a card specifically designed for performing a magic trick. A good example of this would be a blank-faced card, a double-backer with the same backs or a double backer with two different backs, usually but not always a back of the same style in a different color. Another would be a card that has one value on one half and a different value on the other; most Magic Makers colored Bicycle Rider Back decks have some kind of gaff cards packed with them, sometimes even to the exclusion of one or both jokers.
Simply put, if there's a hidden message, word, card face not of the same value, etc. in the artwork on a card, that is a reveal card. Card face reveals are the most common, sometimes appearing on a single joker but not the otherwise identical joker. Reveals can be either well-hidden or barely hidden - barely-hidden is better as this often allows the spectator to find it for themselves without being instructed to do so or having it pointed out to them.
The Origins card you nominated is not a reveal card - it's a gaff card. While reveal cards could be considered gaff cards, not all gaff cards are reveal cards.