Lost Zoning the opponents cards is one of the most powerful things any deck can do in a singleton format, and this deck abuses Lost City better than any other deck (except for possibly Ralts Control), since when Leviathan plays Lost City, its in combination with an invincible Wailord, preventing the Stadium from backfiring
It cannot be targeted or destroyed by card effects , forcing opponents to rely on very specific answers
Some decks can afford the price more easily and some decks want the effect more, judging when you have the right amount of both aspects surrounding the card will determine how good it is for you
You should use one or the other as best fits your preferences
These insights help new and experienced collectors better understand the value and uniqueness of the set
One of the many selling points of the original Pokemon video games was the initial choice of your first starter Pokemon