These days, it's not unusual for prices on any Pokmon sets to go through the roof - but it's not often one doubles in value just because of one specific Pokmon card
If this card is Ritual Summoned: You can shuffle up to 3 Spell/Trap Cards your opponent controls into the Deck, then you can Special Summon 1 Level 4 or lower Spirit monster from your Deck, ignoring its Summoning conditions
(1/19/2018) In a Two-Headed Giant game, if you control more than one creature that can attack, you attack different opponents so that Storm the Vault's first ability triggers twice.
Meloetta #167 ($44.69) The Psychic/Normal-type Mythical Pokmon ex brings melodic abilities and a vibrant illustration rare, making it a fan favorite for both battles and collections
This could be a potent component for a day/night switching deck where you amass 3+ triggers each time, but we can do better than a Horned Turtle that might accidentally let your opponents werewolves enter on their Nightbound side
The top Eeveelution cards are hard to hit, but when you hit, you hit big