While it might not have been a meta threat, the most prevalent of these cards is Latias & Latios GX, a card that commands a price tag of over $1000 currently on the secondary market
Based on the spoiling of Atraxa, Praetors Voice, and Ragavan, Nimble Pilferer, one can assume that the bonus sheet is full of fantastic Legendary creatures
Authentic Pokemon cards also have a black layer between the front and back of the card (from how they are manufactured), which is why the nuclear option to check for authenticity is to rip a card in half (you've probably seen people doing this on social media) and check for the black lining
A dodgy section of the Pokemon TCG community seemingly bought up all of these cards at their lowest prices, causing the market to panic and their prices to increase
Depending on the size of your bulletin board you may have more or less room for cards
Because of this, she's a popular character