Mega Gengar ex 240/193: a listing-check checklist

If you are looking at Japanese Mega Gengar ex listings, the character name is the least useful part of the title. The safer way to compare copies is to start with the collector number: 240/193. That number points to the Special Art Rare from the Japanese MEGA Dream ex high-class pack and separates it from other Mega Gengar ex cards, promos, and international prints.

Here is the checklist I would use before saving a listing or placing an order.

1. Match the number before the artwork

Search for "240/193" together with ゲンガー or PSA10. Japanese sellers often use short titles, and translated names can vary. The collector number is the most dependable first filter. A similar illustration or the words "Mega Gengar" alone do not prove that two listings are the same card.

2. Read the PSA label, not just the seller title

For a graded card, zoom in on the slab label and confirm the set, year, language, collector number, and grade. Then check that the certification number in the photos matches the number stated in the listing. A photo of a slab is useful evidence, but it is still worth comparing every field rather than relying on "PSA 10" in the title.

3. Treat raw and graded copies as different buying decisions

A PSA 10 listing gives you a third-party grade in a sealed holder. A raw copy can cost less, but photos and seller condition notes carry much more weight. Look for clear front, back, corner, and edge images. Whitening, print lines, centering, dents, and surface scratches may not appear in a single overhead photo.

For raw cards, Japanese condition labels are a starting point, not a substitute for close inspection. "No obvious damage or stains" describes the seller's selected condition field; it is not a grading promise.

4. Separate card condition from holder condition

A graded card can have a scratched, chipped, or scuffed slab even when the card received a high grade. If the seller mentions case wear, decide whether you are buying it for display, storage, or resale. For a display copy, reflections across the holder can hide scratches, so angled photos are especially helpful.

5. Compare marketplace features as well as asking prices

Two copies with the same grade can differ because of seller reputation, photo quality, stated condition, return rules, or optional marketplace services. Asking prices are not completed-sale data, and an unusually low listing deserves more inspection rather than an automatic assumption that it is the best value.

Some eligible Mercari trading-card listings offer Mercari official authentication for a fee. OneMall can submit an eligible item, and Mercari official issues the conclusion; OneMall does not independently guarantee authenticity. Yahoo! Flea Market listings may not offer the same option, so a cross-platform price gap is not necessarily an apples-to-apples comparison.

6. Save evidence before international shipping

Keep screenshots of the listing title, photos, seller notes, collector number, and certification number. If you use a proxy service, consider ordering unboxing photos or a wrong/missing-item check before the parcel leaves Japan. Those services cannot grade a card or guarantee authenticity, but they can help confirm that the received item matches the order and document its visible condition.

For a fuller breakdown of this exact Japanese card, including how the raw, PSA 9, and PSA 10 listings were separated at the time of the original survey, see the Mega Gengar ex 240/193 Japan listing guide. Prices and inventory change, so use its dated figures as a snapshot and repeat the listing checks above before buying.

The short version: number first, label second, condition third, price fourth. That order prevents most of the expensive mistakes that happen when several cards share the same character and similar artwork.

Disclosure: the linked guide is from OneMall, a commercial Japan proxy shopping service. This post is an educational adaptation for collectors, and the link is included as the detailed source.