Chase cards, alternate art, and foil variants increase value potential
The first theme is an equipment-based strategy, with many of the creatures becoming stronger when equipped

Charizard-Holo 2018 Nintendo Pokemon Sun & Moon Dragon Majesty PSA Set Registry: Collecting the 1999 Pokmon 1st Edition Gaming Card Base Set, the Series that Started It All PSA Set Registry: Collecting the 2000 Pokemon Team Rocket 1st Edition Card Set An Eye on the Prize: Collecting Pokemon Trophy Cards Collector Profile: Scott Pratte, Profiling a Premier Pokemon Trading Card Prognosticator PSA Set Registry: Collecting the 1999 Pokmon Fossil 1st Edition Card Set PSA Set Registry: Collecting the 1999 Pokmon Jungle 1st Edition Card Set PSA Set Registry: Collecting the 2000 Pokmon Gym Heroes 1st Edition Card Set PSA Set Registry: Collecting the 2000 Pokmon Gym Challenge 1st Edition Card Set PSA Set Registry: Collecting the 2000 Pokmon Neo Genesis 1st Edition Set PSA Set Registry: Collecting the 2001 Pokmon Neo Discovery 1st Edition Set PSA Set Registry: Collecting the 2001 Pokmon Neo Revelation 1st Edition Set PSA Set Registry: Collecting the 2002 Pokmon Neo Destiny 1st Edition Set PSA Set Registry: Collecting the 2002 Pokmon Expedition Set - An "e-Xciting" and Overlooked Card Issue PSA Set Registry: Collecting the 2002 Pokmon Legendary Collection Set

To ensure you have enough pricey cards to make big swarms each time without slowing yourself down too much, you can run cards with alternate costs, like Solitude or Force of Will
Bonehoard Dracosaur ($17 from $14) Ive already bought a borderless foil copy for my Ur-Dragon deck, and while I know the price is high right now, I want it