This premium effect, once exclusive to major publishers, is now achievable by any creator using professional custom holographic cards printing
Alternatively, you can search for artwork online that aligns with your vision for the Pokemon card
While decidedly not a draw effect, it will fill your graveyard which can be useful for other strategies
The included holo card matches your pendant: common pendants come with a matching Pok Ball pattern holo card, while hidden pendants come with the corresponding Pokmon ex holo card
Yes, we'll need to exile them afterwards, but maybe we need a boardwipe like Damnation or a removal spell like Murder
For example, during a Throne of Eldraine Limited event, you can't add Seven Dwarves from your personal collection, no matter how happy they would be