It can't be put into your hand by the effect of Speak Secrets ("Mill four cards, then put an instant or sorcery card from among them into your hand.")
Here is an empty sleeve hanging on the wall
However, after he duels Yugi when Ziegfried is disqualified upon losing to Kaiba, his identity is discovered by one of Kaiba's workers after Ziegfried has him play an illegal card called "Golden Castle of Stromberg", which releases a computer virus into Kaiba Corporation
Its a perfect top-end card for aggressive red decks
This is Eldlich, a Control Deck in Yu-Gi-Oh Master Duel making use of LIGHT Zombie monsters and various Continuous Trap Cards acting as monsters
From my understanding there is no way to prove these are factory square cards, or if someone cut them from a sheet, correct