Wizards of the Coast creates and prints in-multiverse versions of mechanically unique non-canon Secret Lair cards, approximately six months after their original release of the Secret Lair. These become available as part of The List, and are findable in Set Boosters for as long as players are still interested in opening them.
The non-canon cards and the canon cards will be considered as equivalent game pieces, meaning you can only play up to four copies total of the Magic version and Universes Beyond version combined in your deck. The Information below the text box has the special SLX set code and the SLD card number that it equals to. All rebranded cards have the same rarity as the original.
At their introduction, one in eight Set Boosters contained one of these cards, while another one in eight set boosters will contain a different card from the List. According to Mark Heggen, R&D wants the in-world equivalents those to be around and people able to get their hands on them. They are not meant to be the ‘chase objects’, 10 years from now, they want the "other-IP" ones "to be the cool ones that have a little bit more caché and are a bit more interesting to see" The in-world equivalents are the ones that are there for people who are just looking for the gameplay."
- Wizards of the Coast (June 7, 2021). "Secret Lair Universes Beyond Update". magicthegathering.com. Wizards of the Coast.
- Aaron Forsythe (June 7, 2021). "There will be a different treatment that indicates that the cards are related.". Twitter.
- Streets of New Capenna Prebeat (Video). Weekly MTG. YouTube (March 4, 2022).
- WeeklyMTG: Secret Lair October Superdrop Reveal (Video). Magic: The Gathering. YouTube (October 16, 2021).
- Tom Marks (February 17, 2022). "Exclusive: Street Fighter MTG Crossover Cards and February Secret Lairs Revealed". IGN.com.
- Magic: The Gathering (October 22, 2021). "TGIF, folks!". Twitter.
- Mark Rosewater (October 23, 2021). "Is Hawkins National Laboratory going to receive the same “the list treatment” as the other ST secret lair cards?". Blogatog. Tumblr.