There are more cards in the game that reduce O to zero than there are for T or X
The very first booster pack in Yu-Gi-Oh was named after this card, and so actually owning a copy back in the day was awesome
High PSA 10 populations for Unlimited copies ($800-1,200) versus extreme scarcity for 1st Edition Shadowless PSA 10 ($300,000+) illustrate the variant premium structure
A PSA 9 of a mid-range card from a set you like will run $15-40 for many cards

Ryan, Jessica Beaven Typesetting & Layout: Chris Nitz, Angelika Lokotz, Katrina Svoboda, Chel Bieze Production: Michelle Lewis and the Wizards of the Coast prepress staff Print Management: Callise Janikula, Teri Ann Corley, Mitzi McCart Project Coordination (Wizards): Juliane Parsons, Donna Simone, Wendy Wallace Project Coordination (Nintendo): Kenji Okubo Brand Management (Wizards): Carole Pucik, Jill Waller Senior Vice President of Licensed Trading Card Games: Rick Arons Gym Heroes (August 14, 2000) Advanced Rulebook Version 3 Original Japanese Game Producer: Tsunekaz Ishihara Directors: Tsunekaz Ishihara, Kouichi Ooyama, Takumi Akabane Game Designers: Tsunekaz Ishihara, Kouichi Ooyama, Takumi Akabane Card Text Director: Akihiko Miura Art Directors: Milky Isobe, Takumi Akabane Card Illustrators: Ken Sugimori, Mitsuhiro Arita, Keiji Kinebuchi, Tomoaki Imakuni, Kagemaru Himeno Manual Editor: Yuichi Konno Playtesters: Eiji Sumitomo, Daisuke Doi, Hideto Yoshimi, Tomohiro Nakata Special Thanks to: Satoshi Tajiri, Shigeki Morimoto, Ken Sugimori, Hiroyuki Jinnal, Hitoshi Matsui, Daisaku Nishida, Yoshiharu Tsukuda English-Language Version English Translation: Ron Foster English Game Development: Mike Elliot, Robert Gutschera, Paul Peterson, Teeuwynn Woodruff, William Jockusch, Henry Stern, Tom Wylie Rulebook Writing: Robert Gutschera, Michael G

(4) Deployment using "Zenna no Tsuinagihime" A move that has been a hot topic recently, using Zenna no Tsuinagihime to send any monster to the Graveyard to add interruptions