Well, unless you dont have any of these cards in your collection, you probably dont need to relentlessly chase these
If your goal is to fill the graveyard as quickly as possible, Golgari Grave-Troll is one of the best ways to do it, allowing you to skip your draw step to instead mill six cards and put the Grave-Troll into your hand
Lower Text [Your Turn] While this Digimon has [X Antibody] in its traits, it gains Security Attack +1
Update 05-01-2022: Added better pictures of the 3 special cards (History Gate, Pok Ball & Switch) in the 25th Anniversary Creatures Deck
or Wizards finding a way to create more reprint equity (with the most likely being to support a new Frontier-like format at some point in the future, which would increase demand for a lot of new-ish cards that aren't quite good enough to be Modern staples)
Your academic acumen is through the roof