Ishizu, desperate to save her brother, manipulated Kaiba into launching the Battle City Tournament by giving him 1 of the 3 legendary Egyptian God cards, Obelisk the Tormentor , with the intent to win the card back
Series 3 launched alongside the Masaki / "Evolution by Mail" Campaign : players who sent in Kadabra, Machoke, Graveler, Haunter, or Omanyte cards together with a Bill's PC Pass Card received holographic evolved versions (Alakazam, Machamp, Golem, Gengar, Omastar) by return mail
Crystal-clear transparency for unobstructed viewing
Esper Sentinel Card Draw Card draw is easily white's weakest area
"Yoko" and "Tengu" in particular can be Special Summoned in the opponent's turn as disruption
Demonic Tutor is, and in my mind and many others will always be, the best tutor card