The scene where the character Seto Kaiba rips up Yugi's Grandfather's Blue Eyes White Dragon was not only because in that universe four copies still exists and he didn't want that fourth copy to be used against him. But also in the actual Game of Yu-Gi-Oh you are Only allowed to use a maximum of 3 copies of a singular card. Unlike in Pokémon where you are allowed a maximum of four copies of a singular card.
The Opening image of the Ancient Stone is a Iconic Image of the Series, the image of it was even used for the main image for the 2020 Mega Tins in the Real Life Game Release, also the First Tin that was not Released with Promo Cards of any kind.