The first two letters of the stamp indicate the set that the card belongs to. For example, the set code "XY" indicates that the card is from the XY series.
The next number indicates the rarity of the card. The rarity scale is as follows:
* C - Common
* U - Uncommon
* R - Rare
* SR - Super Rare
* UR - Ultra Rare
* CHR - Character Rare
* CSR - Character Super Rare
* HR - Hyper Rare
* LHR - Legendary Hyper Rare
The final letter of the stamp indicates the language of the card. The language codes are as follows:
* E - English
* J - Japanese
* K - Korean
* F - French
* I - Italian
* G - German
* S - Spanish
* P - Portuguese
In addition to the set, rarity, and language stamps, some Pokemon cards also have a "promo" stamp. This stamp indicates that the card is a promotional card that was not included in a booster pack.
Here are some examples of stamps on Pokemon cards:
* XY-123E: This card is from the XY series, is a common rarity, and is printed in English.
* SM-052UR: This card is from the Sun & Moon series, is an ultra rare rarity, and is printed in English.
* SWSH-031CHR: This card is from the Sword & Shield series, is a character rare rarity, and is printed in English.