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Konami famously implemented official tournament rules specifically targeting player hygiene in 2019, saying that all persons attending a tournament not just players must be clean and wear clean clothing, or risk being penalized. You are expected to be clean when you enter a tournament, the official Yu-Gi-Oh Tournament Guide says

One of them is actually a quite fun, promising rogue list that could catch a few opponents off-guard in local tournaments

With their no fuss simplistic albeit sometimes too simplistic playstyles these packs allow for people to get into the game and focus on one specific class at a time

It's like a one-size-fits-all pair of pants, but, you know, for cards