Theres nothing wrong with using proxies and fake cards
Best YuGiOh Master Duel Decks: Exodia One Turn Kill Mega Draw This is a deck that relies on heavy RNG in some aspects, but it's purposefully built around being able to draw as many cards as possible, so you can get all pieces of Exodia in your hand and end the game
Its part of a limited run of 1,510 cards, obtained only by draw, which often means its collectible worth exceeds the typical market price
There are also corner cases where cards that modify Types/Attributes of monsters on the field throw a wrench in your plan since Messengelato and Ticket require specific types to get their full value, and the Vernusylphs lock you into Earth effects, so if your monsters become out of their element as soon as they hit the field, youve locked yourself out of activating their effects
We need to beware this predatory pricing behavior, and truly dig into the data to see if a card truly merits the high price tag or if sellers are purposefully manipulating the price
Others, like Kilo, Apogee Mind or Dreamtide Whale, give you steady triggers turn after turn, making sure your walkers never stop climbing