Being able to cast the top card of your library as long as its a Goblin is eminently useful for Goblin decks that often care about getting as many bodies onto the battlefield as possible with ruthless expediency
This also applies to trading staple cards
While you might find some bargains for cards, particularly those in lower-tier conditions, most of the best cards from EX Deoxys are rare and expensive
Board wipes have long been a staple of the Commander format, and you'd be hard-pressed to find a well-tuned Commander deck that doesn't include at least one Whether you want to open your way to win, or just keep an opponent at risk of running away with the game at bay, board wipes are some of the most essential cards you can run in a deck
Youll have to sacrifice legendary copies unless you have ways to get around the legend rule, but Tegwyll, Duke of Splendor can still give you cards when those copies die
A lack of marketing and being a One Piece card game in the West at a time where One Piece wasnt super popular was the cause of its downfall