All 348 cards are listed, and none of them is reconstructed from a list of names. The counts match the card database that holds the Japanese scans: 100 in March, 90 in July, 79 and 79 in October. One count does not match: the two October packs are often quoted as 80 cards each, and this archive has 79. The 79 is what the source holds — 70 numbered cards + Alph Lithograph + 8 basic Energy — and the missing card is not invented and not stood in for. It is listed as it is, one short of the quoted count.
The number on the card changes meaning twice this year, and the page shows whichever the card actually prints. DPt3 and DPt4 print 001/100 and 001/090 — a position. October's packs print only to 070, but Alph Lithograph is printed 071/070, a secret card past the end of its own set, and the eight basic Energy cards print no number at all. All of this was checked by cropping the bottom-right corner of the scan, not by reading the database's field.
Every stat comes from the English printing of the same card, because no Japanese database covers the DPt or LEGEND era. HP, type, stage, retreat cost, attacks, ability and illustrator are read off the English twin, and the pairing was checked card by card: name first, then an image fingerprint on the two scans, with a hard cutoff at 14 bits — anything further apart is treated as no match at all rather than a bad one.
Thirty-two of the 348 cards are printed in English, but not in 2009 — and this page used to say the opposite, which was wrong. English merged the two October packs into one 124-card set and could not fit these into it, so they were printed a set later: Weedle, Kakuna and Beedrill; Remoraid and Octillery; Mankey and Primeape; Spearow and Fearow; Tauros; Stantler from HeartGold, and the whole Poliwag line, the whole Zubat line, Natu and Xatu, Sudowoodo, Aipom, Teddiursa and both Ursaring from SoulSilver all turn up in Unleashed on 12 May 2010 — Ursaring's ☆ card among them, as one of that set's six ☆. The eight unnumbered basic Energy cards in each October pack print in HeartGold SoulSilver at 115–122, with numbers. No card in this archive is English-less. The separate case is the handful of Trainer and Energy cards Japan printed twice and English once, and the eight Japanese Energy cards, whose English names come from a different numbering rather than from these card faces.
The nine English LV.X and the nine Japanese ones are not the same nine. Japan prints five in March and four in July; English prints six, nine, seven and six across its four sets, because English splits the same Japanese material four ways and adds SP cards Japan never printed. Nothing here treats one count as a check on the other.
Arceus is the year's clearest case of the two editions diverging. Japan prints it five times in the numbered set plus one LV.X. English prints it twelve times: three LV.X in the numbered set, and then AR1–AR9, nine hidden cards, one per type. All nine are listed on the English edition page. Only the five Japanese numbered copies and their LV.X appear here.
About the scans. All 348 card faces are full-size scans from the card database that holds the Japanese prints — each one is shown here scaled down from that original, never enlarged from a smaller copy. Where a card has no Japanese name in a public species list — a few alternate forms and the SP cards — the Japanese name is taken from the official species name of the same Pokémon; three (マネネ, ペラップ, ルクシオ) are written straight off the card face because the species list we hold does not carry them.