at most points in the last 23 years you could find one for sale if you looked around, and the trade value for a copy has usually been around the ballpark of a full Unlimited P9
Despite the game being relatively generous in terms of freebies, with lots of free events and Hourglasses for booster packs and Wonder Pick alike, Pokemon TCG Pocket is still a gacha game at heart, and collecting all cards is much more complicated than it may seem
If the copied creature is a token, the token created by Thousand-Faced Shadow copies the original characteristics of that token as stated by the effect that put it onto the battlefield
After all, due to the rarity of this cards error, little pricing precedent existed
With this card around, you just need a good supporting crew that benefits when you cast noncreature spells
You can even use that guide once youre more familiar with the basics of the game, in order to find out which sets are right for you as your skills evolve with experience!