Charizard ex (151 Full Art / SIR) Current value: ~$200$400+ AUD Classic Charizard effect Huge nostalgia-driven demand 151 continues to perform purely on Gen 1 hype 10
Generally, simple border extensions (which I dabble in most often) should be tourney legal, but as I always say -- ask your local judge
Then, you cannot play Character cards during this turn
Expressive Iteration offers some old-school card advantage, which has been sorely lacking over the last five or so years
Your main resources to manage are Wonder Hourglass and Pack Hourglass
Unfortunately, players will need to own all the necessary cards before the machine will assemble a deck, but with a limited amount of cards existing in the game, grinding out duels to earn Booster Packs would not be a lengthy endeavor