Once you have the answer (or at least a ballpark answer), you can do some math to figure out how many cards you need
This Supporter card has quickly risen to become a must-have in almost every single deck, and it will go down in TCG history as one of the most game-defining cards of all time
Common Card, Played Condition: The cute bug Weedle from Base Set is surprisingly affordable, costing $0.35 for a lightly played version and $0.23 for a heavily played version
Having Gardevoir EX stand in for the Pokmon on the field is fine for the early game, but youll want to pull it back to the bench as soon as possible to avoid potentially losing the cornerstone of your entire deck
Leafeon ex card 144/131 would be an excellent healer card in play, although anyone who owns this Special Illustration Rare would be encouraged to keep it safe rather than risk it being damaged during a game
Id totally run it in a Charizard ex deck just to look extra fancy at my local events