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)
For example if you dip a tooth pick in water and scratch a real card it won't make the colors go off
Red Uncommons Dragon Whelp $30/$15 Dwarven Demolition Team $20/$10 Orcish Oriflamme $15/$6 Orcish Artillery $13/$6 Goblin Balloon Brigade $10/$4 Keldon Warlord $8/Unlisted ALL OTHER RED UNCOMMONS $5/$1 The Oriflamme and Artillery command a premium thanks to the mana cost misprint I mentioned above
XY Black Star Promos TypePokmon Collector NumberXY61 RarityPromo ArtistToyste Beach Attacks Spiral Buzz80+ Flip a coin until you get tails
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
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