Dangerous Frightfur Nightmary This is definitely one of the most costly cards in the extra deck, costing 3 monsters to fusion summon
Pokmon card types Just like in the Pokmon videogames, each 'mon has an elemental 'type' that affects its strengths and weaknesses (Decidueye above is Grass-type, shown by little leaf symbol)
To that end, adding a couple of Technical Machine Devolutions isn't a bad idea, though we'd be hard-pressed to tell you precisely what to nix in return - the Ultra Ball, maybe
That didn't last long, because in April 2024, Adam Cai of Pristine Collectibles sold a CGC Pristine 10 graded copy of the Alpha Black Lotus for $3 million to an undisclosed private buyer
And one of them is demanding blood money
This, combined with the player count having dropped by around 50% since the game's launch (according to estimates from ActivePlayer), and interested players only being able to get a single copy of the card as part of their purchase, makes shiny Mewtwo ex the rarest Pokemon TCG Pocket promo card of all time