how to tell if you have a rare pokemon card Your Pokémon Cards Are or Expensive! 6 Easy Ways To Tell
Description
You dont always want to use this, since it hits your creatures too

As you can see the older backs are more grainier and have a higher contrast at all

It has a retreat cost of 2 Colorless Energy

Condition Cards in mint condition (no scratches, creases, or edge wear) command the highest prices