A year ago, Wizards of the Coast introduced a new product called Secret Lair, a way for the company to sell singles with alternate art reprints directly to collectors and players.
Today they teased a "Secretversary" to celebrate the occasion, promising "card previews you won't want to miss, over the next few days."
It became public knowledge that Bob Ross illustrated lands are in the Secret Lair after they leaked through Arena, with the last update.
An Instagram account had already leaked a range of other Secret Lairs that would drop Cyber-Monday, November 30, and so far, the information has been correct.