No Number Blue Backs (1997) These numberless cards (no number on top left corner) were released before subsequent print runs added numbers (001150) on the right side of the card
They adhere to the rules and formats of official Pokmon TCG tournaments, allowing players to use them in competitive events
Manufactured in 1999 by Wizards of the Coast, the cards are in standard size and made of card stock
PSA is the biggest professional grading company in the market, and they'll assess your cards for a fee
Their original forms would in turn end up retrained with new effects to supplement their intended archetypes (Odd-Eyes for Performapals and Magicians, Dark Rebellion for Phantom Knights, Clear Wing for Speedroids, and Starving Venom for Predaplants)
It has to attack so no muddying up the ground with it as a blocker barring vigilance which you will want to give it