For example, these test cards are missing the Pokmon that should appear in the evolution box, the flavor text below the art box with the exception of the Magneton, and energy symbols
Its best use seems to be either as a storm support card or in decks that can break the parity (with lots of cheap spells / creatures / cantrips that can cycle into each other), but Im honestly not a huge fan of it
In this particular deck, for example, you can search out an Arven, use it to pull a Rare Candy and a Pokemon Tool, and get some pretty impressive combos in
As a result, this deck and the strategies it presents are a good starting place, but not something you should look to focus on long-term or in competitive play
Over time, it has become one of the most valuable printings of the iconic card due to its unique rarity