Everything Else in the Deck As you can see, the rest of the deck contains what I'd consider the obvious inclusions
Psychic Energy #101 Pokemon Base Set Keep track of your collection value over time
Even without Mega Digimon Fusion

View as Gallery View as List SR Super Rare SR Super Rare SE Secret Rare SR Super Rare SE Secret Rare SR Super Rare SE Secret Rare SE Secret Rare SE Secret Rare SR Super Rare SE Secret Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SE Secret Rare SR Super Rare SR Super Rare SE Secret Rare SE Secret Rare SE Secret Rare SE Secret Rare SR Super Rare SE Secret Rare SE Secret Rare SR Super Rare SR Super Rare SR Super Rare SE Secret Rare SE Secret Rare SE Secret Rare SR Super Rare SE Secret Rare SR Super Rare SE Secret Rare SR Super Rare SE Secret Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SE Secret Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare SR Super Rare Vampire Familiar X DARK Level 1 [ ZombieEffect ] ATK 500 DEF 0 If this card is Special Summoned: You can pay 500 LP

If you look hard enough you can find phenomenal deals too (like a NM Shining Legends Mew, Rayquaza, Celebi and Jirachi for $10!) ANYWAY, MY QUESTION
This is typically achieved by using conditions (to include or exclude), renaming cards, or changing effects to cover archetypes that have been split into multiple archetypes (e.g