Each Pokemon has one unique move they can use depending on the Energy type you attach to it
As an extreme example, there could be various artworks for the Ring of Power that only number to the number of rings actually seen in the Lore of Tolkiens original work
It's a 6-mana artifact that lets you pay another 6 mana, tap and sacrifice it to go through your library, exile as many artifacts as you like and then create that many 1/1 Myr artifact creature tokens
In a two-color deck, that's pretty good
These cards are from the very first print run, and as the same suggests, they didnt have a rarity symbol in the bottom right corner
Your sideboard can now include absolute bombs like Ugin, the Spirit Dragon, or a much-needed Farewell to ensure your victory