You gotta grind for those cards, open packs, or, ya know, just buy what you need
Each booster for Magic: The Gathering includes 14 cards, one of which will be a Traditional Foil style card and 1-4 of which will have Rare or higher rarity
You may decide to have conflicting types - Water and Electric, for instance - in order to defend against certain Pokmon types
While thats brave, it also means that Marton is going to die a lot, so its worth including a fair number of ways to protect Marton from certain death
That variance can be immensely enjoyable, and my results at Pro Tours demonstrate that Singleton decks can hold their own in 60-card formats with expansive card pools
I know they changed the jumbo cards dimension some time ago so it would be cool to know how to store both versions