Blue craves knowledge, and structure is key to research
Trample, flying, first strike, banding, and ante all appear on various cards, but very few overall
Conclusion: booster packs or blister packs
Sources Pokmon Center Support Where can I find information about distributors (opens in new tab) Search Underground How to Become a Pokmon Distributor (opens in new tab) PokeCardFinder How Many Booster Boxes in a Case (opens in new tab) DJR Authentication How to Spot Fake Pokmon Booster Boxes & Sealed Product (opens in new tab) The Card Collective How to Tell If a Pokmon Booster Box Is Resealed (opens in new tab)
So if you control one monster in the extra monster zone and one monster in the main zone, you get 3 tokens when this guy is summoned
Understanding these different types helps collectors and players recognize how common or rare a card is, and which ones are more desirable