Beta Limited Edition Alpha and Limited Edition Beta cards both have distinct white triangles in their borders and have no legal or collectors information other than the illustrators copyright
The rarity code (SR, SAR, AR, UR, MUR) is printed there in small Latin letters, usually next to the card number (e.g., 123/110 SAR)
Additionally, details for Special Edition Collector Boosters, Scene Boxes, and Jumpstart Volume 2 have been added
If all this is too much for you, you can also use their Advanced Search UI, but bear in mind that its less flexible than building your own queries
For example if you dip a tooth pick in water and scratch a real card it won't make the colors go off
While the Dream Painting Eevee release is exclusive to China, past sets have later come to Japan - but never the wider world