Shopping Guide
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By onemall 
TL;DR
Mega Greninja ex SAR (114/083) from the M4 expansion costs ¥29,600 to ¥33,000 in a PSA 10 slab today — all five cheapest on Yahoo! Flea Market — with PSA 9s at ¥18,000 and ¥38,000, and raw copies at ¥17,500–¥19,200. The cheapest slab is 1.7× the cheapest raw; the ¥18,000 PSA 9 costs ¥500 more than a clean raw.
- Cheapest PSA 10: ¥29,600 (US$204.24) on Yahoo! Flea Market; ¥31,180, ¥32,000, ¥32,000, ¥33,000 behind it.
- PSA 9 at ¥18,000 is 61% of the cheapest 10; the ¥38,000 PSA 9 is above every PSA 10.
- Raw copies: ¥17,500 clean with authentication, ¥18,170 with wear, ¥19,000 clean, ¥19,200 unused.
- Forty-one PSA 10 slabs in stock — the M4 chase card is graded in volume.
As of September 2026, the M4 Mega Greninja ex special art rare is a ¥30,000 slab with a raw floor at ¥17,500, and a PSA 9 market that runs from sensible to absurd in two listings.
This page reads today’s in-stock Mega Greninja ex SAR 114/083 listings across PSA 10, PSA 9 and raw, what the thin premium means, and how to buy from Japan.
Mega Greninja ex SAR 114/083 PSA 10 price in Japan today: 41 slabs in stock
Forty-one PSA 10 slabs, two PSA 9s and fourteen raw copies were in stock this morning. The five cheapest slabs, both 9s and four raws follow.
| Grade | Price today | Platform · seller condition note | Mercari authentication |
|---|---|---|---|
| PSA 10 | ¥29,600 (US$204.24) | Yahoo! Flea Market · Unused | — |
| PSA 10 | ¥31,180 (US$215.14) | Yahoo! Flea Market · Unused | — |
| PSA 10 | ¥32,000 (US$220.80) | Yahoo! Flea Market · Almost Unused | — |
| PSA 10 | ¥32,000 (US$220.80) | Yahoo! Flea Market · Unused | — |
| PSA 10 | ¥33,000 (US$227.70) | Yahoo! Flea Market · Unused | — |
| PSA 9 | ¥18,000 (US$124.20) | Mercari · Unused | +¥1,700 available |
| PSA 9 | ¥38,000 (US$262.20) | Mercari · Nearly unused | +¥1,700 available |
| Raw (ungraded) | ¥17,500 (US$120.75) | Mercari · No obvious damage or stains | +¥1,700 available |
| Raw (ungraded) | ¥18,170 (US$125.37) | Mercari · Slight damage or stains | — |
| Raw (ungraded) | ¥19,000 (US$131.10) | Mercari · No obvious damage or stains | +¥1,700 available |
| Raw (ungraded) | ¥19,200 (US$132.48) | Mercari · Unused | +¥1,700 available |
A note on sourcing: the Mega Greninja ex 114/083 prices above are the asking prices on each item page as of 2026-09-20, and USD is the conversion the page displayed at checkout. All copies are the Japanese print of the Pokémon TCG[5]. Condition notes come from the seller’s own Mercari / Yahoo! Flea Market condition field (translated); Suruga-ya rows are shop stock and carry none. Listing titles are in Japanese — the tiles below link to each copy. Mercari supports overseas buyers via partner proxy services[3].
Yahoo! Flea Market has the entire slab ladder: ¥29,600, ¥31,180, two at ¥32,000, ¥33,000 — all unused or nearly so. The PSA 9s are ¥18,000 unused with authentication, and ¥38,000, which is ¥5,000 above the most expensive PSA 10 in stock. Raw copies are tight: ¥17,500 clean with authentication, ¥18,170 with a wear note, ¥19,000 clean, ¥19,200 unused — fourteen in stock, most of them clean, which is unusual for a chase card.
| Item | Mega Greninja ex SAR 114/083 |
|---|---|
| Set | MEGA expansion M4 (ニンジャスピナー)[4] |
| Collector number / rarity | 114/083 · Special Art Rare (SAR) |
| Cheapest PSA 10 (gem mint) in stock today | ¥29,600 (US$204.24) on Yahoo! Flea Market |
| Cheapest raw copy in stock today | ¥17,500 (US$120.75) on Mercari |
| PSA 10 value vs raw (cheapest slab ÷ cheapest raw) | 1.69× — what the gem mint grade is worth over an ungraded copy today |
| In-stock listings found in today’s sweep | 41 PSA 10 · 2 PSA 9 · 14 raw |
| Data read | 2026-09-20 13:19 UTC, live item pages |
Everything on this page refers to the Japanese-language Mega Greninja ex, collector number 114/083 in MEGA expansion M4. An English print of the same artwork is a different card with its own number, set name and market[5], as are promo versions and full-art variants from other sets. Match the number on the slab label before you compare any price.
Mega Greninja ex PSA 10 value: is the slab worth 1.69× a raw copy?
A 1.7× multiple, or a ¥12,100 gap, is a small premium on a card whose raw copies hold ¥17,500 clean. The sensible PSA 9 at ¥18,000 is ¥500 above the cheapest raw — the market gives the certificate almost nothing and the gem-mint label ¥11,600. That makes a self-submission on the ¥19,200 unused raw a fair bet: a 9 returns roughly what you paid, a 10 gains ¥12,100. PSA’s GEM MT 10 standard[6] on this dark card shows edge wear, but forty-one slabs in stock say it is hit routinely.
| Route | Cost today (JPY, before shipping) | What you get |
|---|---|---|
| Buy the cheapest PSA 10 slab | ¥29,600 | Grade already locked in; you pay the full premium, nothing to wait for. |
| Buy the cheapest raw copy as-is | ¥17,500 | Cheapest way to own the artwork; condition is whatever the photos show. |
| Buy the cheapest raw copy with Mercari authentication | ¥19,200 | ¥17,500 + ¥1,700 authentication fee[1]; the card is checked for authenticity before it ships, but it is still ungraded. |
Buy the ¥29,600 slab for gem mint. Buy the ¥19,200 unused raw with Mercari authentication[1] (¥20,900 all-in) for the binder or a submission. The ¥18,000 PSA 9 is fine if you want a sealed copy at the raw price; the ¥38,000 PSA 9 is not.
How to order Mega Greninja ex SAR 114/083 from a Japanese seller
A Yahoo! Flea Market slab goes through a proxy like any Mercari listing. The sequence:
- Step 1 — Search by collector number. On OneMall, searching “114/083 PSA10” in the Mercari tab surfaces slabs the English name never would — most Japanese sellers title the card in katakana.
- Step 2 — Compare against today’s floor. Today’s floor is ¥29,600 for a PSA 10 and ¥17,500 raw; treat those as your anchors when a new listing appears.
- Step 3 — Buy it. One click adds the item; the order is placed on Mercari on your behalf and received at the Japan warehouse.
- Step 4 — Authentication or inspection. Mercari authentication (+¥1,700) is available on listings that show it[1][2]; the proxy’s own inspection and photo service covers the rest.
- Step 5 — Ship when you are ready. Free storage runs 90 days, so several cards from different sellers can leave as one consolidated parcel.
Mega Greninja ex SAR 114/083 for sale today: the copies behind the numbers
Live copies, cheapest first: two raw copies, the ¥18,000 PSA 9, and the three cheapest PSA 10 slabs. Each tile links to the OneMall item page for that copy.
Conclusion — the buy for Mega Greninja ex 114/083
Mega Greninja ex SAR 114/083 is ¥29,600 in gem mint, ¥18,000 as a 9, and ¥17,500 for a clean raw. Buy the slab for certainty or the unused raw for the bet; skip the ¥38,000 PSA 9. See every Mega Greninja ex 114/083 PSA 10 listing.
See also: PSA 10 Pokémon card prices in Japan: all 80 cards ranked · Pokémon card prices in Japan vs eBay · Card grading guide: PSA vs BGS vs CGC from Japan.
Frequently Asked Questions
How much is a PSA 10 Mega Greninja ex SAR 114/083?
In-stock Japanese listings on 2026-09-20 ask ¥29,600 to ¥33,000 (about US$204–228 before shipping); all five cheapest are Yahoo! Flea Market slabs.
Why is one PSA 9 priced at ¥38,000?
One seller has listed a PSA 9 above every PSA 10 in stock. It is mispriced; the other PSA 9 at ¥18,000 shows where the grade trades.
Is it worth grading a raw Mega Greninja ex myself?
A fair bet: a ¥19,200 unused raw becomes roughly an ¥18,000 card as a 9 or a ¥29,600 card as a 10.
Which set is Mega Greninja ex SAR from?
The M4 MEGA-series expansion (ニンジャスピナー in seller titles); 114/083 is its special-art-rare number above the 83-card base.
Is there a PSA population report for Mega Greninja ex SAR 114/083?
Yes — PSA’s Population Report[6] lists the census for every graded card, including this one, and it is the number to check before you buy for scarcity. It is not reproduced here because it changes constantly. The in-stock picture on 2026-09-20 — 41 PSA 10, 2 PSA 9, 14 raw copies — is the market-side supply figure this page can stand behind.
Last updated: 2026-09-21.
References
- Mercari Help Center — あんしん鑑定サービスの概要 (Mercari authentication service overview, fee ¥1,700 per card) — https://help.jp.mercari.com/guide/articles/1499/
- Mercari Help Center — あんしん鑑定サービスの利用方法（購入者） (how buyers use the authentication service) — https://help.jp.mercari.com/guide/articles/1501/
- Mercari Help Center — 海外取引サポート (overseas purchase support via partner cross-border services) — https://help.jp.mercari.com/guide/articles/1447/
- Pokémon Card Game official site (Japan), The Pokémon Company — https://www.pokemon-card.com/
- Pokémon Trading Card Game, The Pokémon Company International — https://www.pokemon.com/us/pokemon-tcg
- PSA — Professional Sports Authenticator, official grading company site — https://www.psacard.com/