It can struggle against decks with single, high-HP attackers (like Gholdengo ex) that are difficult to KO with Phantom Dive's 200 base damage, forcing the Dragapult player to rely heavily on clever Dusknoir plays to win the prize race
Aether Channeler, Sea Gate Oracle, Watcher of Tomorrow, Couldblazer, Augur of Bolas, and many more not only draw you extra cards, but in many cases let you take your pick of cards from the top of your deck
There are very few situations where this is a dead card
The gold comes up mainly in the context of price and pull-rate discussion as the set's toughest and most expensive card, alongside broader fatigue with the run of small single-headliner sets
Might be worth saving your bottle caps, but maybe you'll get lucky and find one