That said, since you have to discard the card at your next upkeep, it means that if you play it turn 2 you will need a madness card for 2 or less mana to be able to play it
However, an older card such as a Pokmon which has the same name, but not the same stats and abilities (for example, the Sableye shown in the image above), would not be legal to include alongside a Sableye with the currently legal regulation mark
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Spell EN Shuffle Normal Spell Shuffle 1 "Elemental HERO" or "Neo-Spacian" monster you control into the Deck, and if you do, Special Summon 1 "Elemental HERO" or "Neo-Spacian" monster with a different name from your Deck
As you can expect, this has left people more than a little confused