Certain colorless cards are integral for maintaining card advantage and supporting deck themes
Hexproof iterated on shroud and made it so only your opponents can't target the protected creature, while its controller still can
You can find this Pokmon BOOster Bundle at Costco now.
Blessed Orator, Lashknife Barrier, Diversionary Tactics, and Worship combine with Squirrels to stall most opposing creature-based strategies so that you can set up something tricky later in the game (something involving Phyrexian Altar or Test of Endurance, perhaps?)
The point is, contemporaneous unpopularity has a strange way of making obscure stuff all the more desireable years on down the line, and thats what Im here about: to talk about one of the more relatively rare aspects of the Pokmon TCG: the Card-E Era
This has led to the creation of over 30 (and growing) different game decks, all of them free for print your own downloading, many of which can also be purchased