It's unclear, but it's just as likely that her appearance was removed to avoid distracting from the main story, as viewers would likely wonder what Yugi's mother thought about venturing to locales worldwide and challenging psychopaths and sorcerers to card games
Brand: Pokemon Series: Sun & Moon Lost Thunder Item Type: Single Card Release Date: November 2, 2018 Company: Pokemon USA UPC: 0610622205969 Stock #: 276707 Our Guarantees to You, Our Valued Customer
If this card in the Pendulum Zone is destroyed: You can target 1 Level 4 or lower monster your opponent controls
Once in play it usually Wraths their team and even when they have a few survivors they are just inconsequential against a 4/7 vigilance, let alone anything else you might have had
If youre running a hybrid deck such as Performapal-Odd-Eyes then this card becomes absolutely lethal, allowing you to search out cards from both halves of your deck
(By far the most common problem is people mash shuffling without changing the top few cards of the deck.) And if you're a judge, please try to get into the habit of watching how people shuffle and nudging them if they need to improve