This is unlike standard variants, which typically contain a mix of common, uncommon, and possibly a single rare or a holo card
For individual cards and older booster packs and boxes, you will just have to gain a lot of experience and learn the nuances of real Pokemon products and then make educated purchases, ideally with a means of recourse if it turns out you were scammed (some kind of buyer protection program, etc)
Top Jeskai Commanders Zinnia, Valley's Voice 18,948decks Kilo, Apogee Mind 17,319decks Satya, Aetherflux Genius 15,036decks Captain America, First Avenger 14,871decks owyn, Shieldmaiden 14,051decks Kykar, Wind's Fury 13,808decks Inspirit, Flagship Vessel 12,242decks Atreus, Impulsive Son // Kratos, Stoic Father 12,210decks Zedruu the Greathearted 12,048decks Sonic the Hedgehog 11,009decks Narset, Enlightened Exile 10,571decks Sokka, Tenacious Tactician 10,294decks Shiko and Narset, Unified 9,149decks Elsha, Threefold Master 8,563decks Commodore Guff 7,434decks Pramikon, Sky Rampart 7,130decks Hinata, Dawn-Crowned 6,838decks Dr
Remember those card trades in the schoolyard
