Magnetic closure rigid box These are a little more robust than the basic box, with a hinged lid and a flap which closes with an inserted magnet fastening
With the crazy amounts these cards have been selling, people are most likely looking around their homes for a possible First Edition "Pokemon" card, or even a complete set of these old cards, whether they contained rare cards or not
"OP11-035 Fisher Tiger" and "OP11-024 Aladine" both allow you to deploy Characters from your hand when K Characters, they will likely rely on [Blocker] cards to prevent their hand and Life cards from being whittled down further
Once you control both cards, they 'meld', flipping over and combining to become a third card - the oversized Urza, Planeswalker
It is a singular card with a singular story, and its population reflects that uniqueness