All three of these creatures have the creature type Merfolk
Creatures are more expensive than life a lot of the time, which is why this beats out the Deadly Dispute group of cards
At $500-800 secondary market value, opening destroys far more value than you will recover in singles
Take for example this Charizard V card that was posted by a redditor named mathmannix: Notice that this Charizard has a whopping 500 damage for its Wild flames attack, with an awkward description saying Attack with igniting fire, and all the elves of the opponent will be burned. Unless youre playing Magic the Gathering, youll never encounter any elves when playing Pokemon TCG
2023-05-12 If you reveal your entire library and don't reveal an Elf or Elemental card, you'll put all revealed cards back in a random order
It indicated that the abilities of the card had a cost, which required you to tap the artifact during play