what does base set mean in pokemon cards Pokémon : r/pokemon Catch 'Em All: The Essential

With the singleton decks required by the Commander format, they'll eventually have to get rid of certain cards central to their strategies, leaving them unable to play how they want

[128] As Magic has expanded across the globe, its artwork has had to change for its international audience

It does this by offering a few different categories of cards that are more well-rounded than the typical Pokemon expansion

Facets of life, reflections of the soul

Black's tutors allow you to ignore this by searching for any card you like, completely unrestricted, and placing it directly into your hand, or on top of your library

If your chosen card does more than this like providing multiple Energy types or removing retreat costs then its likely a Special Energy card