If you are just playing the card straight up, its kind of a build your own Thoughtseize. That said, it was always particularly powerful that you could ensure your opponent doesnt have the card that can stop you, since even if you missed, it meant they didnt have that card
These cards, which have all been verifiably sold (anything is only worth as much as someone will pay for it), have each fetched their owners a great sum of money
As per the usual Gem Pack series, each card will have a total of 7 variants
Few players would voluntarily do so, however, since Baby Pokmon were overpowered in their own way
I own both Disappear and Bottomless Trap Hole, the latter having a pretty creepy artwork
My sensei Mike Flores had some words to say on the matter