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Mega Greninja ex MUR just sold for ¥94,223 ($628) on the Japanese secondary market — making it the single most valuable card in the entire MEGA series.

Ninja Spinner (M4) dropped in Japan on March 13, 2026, and the early opening data is in. Over 1,000 boxes have been tracked by Japanese collectors, giving us real pull rate numbers instead of estimates. The headline: SAR pulls land at roughly 1-in-3 boxes, while MUR sits at a brutal 1-in-50.

This guide covers every data point that matters: the Top 10 most valuable cards with actual market prices from SNKRDUNK and Mercari, verified pull rates from large-scale Japanese opening data, a full EV breakdown against the ¥10,000 box price, and a direct comparison between the JPN release and the English Chaos Rising set arriving May 22.

Our team ships over 100 JPN booster boxes from Tokyo every week. Here’s what the real numbers show for Ninja Spinner.

Key Takeaway

Mega Greninja ex MUR is trading at ¥94,223 ($628) — the most valuable card in the MEGA series. At a 33% SAR pull rate and ¥10,000 per box, Ninja Spinner offers one of the strongest value propositions in the MEGA era, with a 70-day head start over the English Chaos Rising release.

¥10,000
Box Price

~120
Total Cards

~1/3
SAR Rate

89%
Box EV Ratio

Ninja Spinner Set Overview

Ninja Spinner is the fourth expansion in the MEGA series and the first set to feature Mega Greninja ex — the Mega Evolution of the most popular Pokemon in the world.

Set Specs

Detail Info
Set Name Ninja Spinner (ニンジャスピナー)
Set Code M4
Series MEGA Expansion Pack
JPN Release March 13, 2026
ENG Equivalent Chaos Rising — May 22, 2026
Total Cards 83 base + ~37 secret rares (~120 total)
Packs/Box 30 packs × 5 cards
MSRP ¥5,400 → Market price: ¥10,000 (~$67)
Rarity Breakdown MUR: 1 · SAR: 6 · SR: 18 · AR: 12 · RR: 8

Prices as of March 2026. Secondary market prices.

What’s New in M4

Mega Greninja ex headlines the set with a devastating 280-damage Ninja Spinner attack and the Lethal Shuriken ability that places 9 damage counters before attacking. Two trainer supporters — Roxie and AZ — get Special Art Rares, alongside four Mega Evolution Pokemon ex cards.

The competitive standouts are Big Catch Net (search your deck for any Basic Pokemon) and Bubble Water Energy (prevents retreat cost increases). Both cards are shaping early MEGA-format deck building.

JPN vs English Release Timeline

Version Release Date Pre-release Set Size
JPN (Ninja Spinner) March 13, 2026 ~120 cards
ENG (Chaos Rising) May 22, 2026 May 9-17, 2026 120+ cards

JPN buyers get a 2-month head start on chase cards. Historically, JPN versions of MEGA series cards have traded at a 15-40% premium over their English counterparts.

Top 10 Most Valuable Cards in Ninja Spinner

Mega Greninja ex dominates — the MUR alone is worth more than the rest of the Top 10 combined.

All prices below reflect actual Japanese secondary market transactions as of March 2026, sourced from Mercari sold listings and SNKRDUNK data.

Rank Card Rarity Price (¥) Price (USD)
1 Mega Greninja ex MUR ¥94,223 ~$628
2 Mega Greninja ex SAR ¥40,429 ~$270
3 Cinccino ex SAR ¥3,803 ~$25
4 Mega Greninja ex SR ¥3,404 ~$23
5 Mega Floette ex SAR ¥3,246 ~$22
6 Roxie’s Performance SAR ¥3,143 ~$21
7 Mega Dragalge ex SAR ¥3,133 ~$21
8 AZ’s Tranquility SAR ¥1,584 ~$11
9 Special Red Card SR ¥1,407 ~$9
10 Mathieu SR ¥1,220 ~$8
Mega Greninja ex MUR from Ninja Spinner, valued at ¥94,223
Mega Greninja ex MUR card — the most valuable card in the MEGA series

#1 Mega Greninja ex (MUR) — ¥94,223 (~$628)

The crown jewel of Ninja Spinner and the entire MEGA series to date. Greninja won Pokemon of the Year in 2020 with over 140,000 votes, and this is its first-ever Mega Evolution card. The MUR variant features a full-art illustration with premium texture that’s already drawing PSA submission interest from grading enthusiasts.

At ¥94,223, it has room to grow. The Mega Charizard X ex MUR from Inferno X launched at ¥100,000 and has climbed to ¥138,000 after months of steady appreciation. Greninja’s broader international fanbase could drive a similar trajectory.

The catch: MUR pulls at roughly 1-in-50 boxes (2%). At ¥10,000 per box, that’s a ¥500,000 average investment to pull one. The singles market is the realistic path for most collectors.

#2 Mega Greninja ex (SAR) — ¥40,429 (~$270)

The Special Art Rare is the realistic chase card. At a 33% SAR rate per box and six SAR variants in the set, each individual SAR has roughly a 5.5% per-box chance — meaning the Greninja SAR specifically appears in about 1-in-18 boxes.

The ¥40,429 price tag makes it the second most valuable SAR in the current MEGA series, behind only Mega Gengar ex SAR from MEGA Dream ex. For Greninja collectors, this is the card to target.

Mega Greninja ex SAR Special Art Rare from Ninja Spinner set
Mega Greninja ex SAR card from Ninja Spinner

#3 Cinccino ex (SAR) — ¥3,803 (~$25)

A surprise entry at third place. Cinccino’s cute design and the ex treatment give it appeal beyond competitive use. The gap between #2 and #3 tells the story — this is firmly a Greninja-driven set.

Cinccino ex SAR Special Art Rare from Ninja Spinner, third most valuable card
Cinccino ex SAR card from Ninja Spinner

#4 Mega Greninja ex (SR) — ¥3,404 (~$23)

The Super Rare variant offers the Mega Greninja artwork at a fraction of the SAR/MUR price. For players who want the card in their deck, this is the practical option.

#5 Mega Floette ex (SAR) — ¥3,246 (~$22)

Floette’s evolution into Mega Floette ex brings strong energy acceleration to the competitive scene, and the SAR illustration has drawn collector attention for its elegant design.

#6 Roxie’s Performance (SAR) — ¥3,143 (~$21)

Roxie’s supporter SAR features dynamic concert artwork. Trainer SARs tend to hold value well as the collector base for character art is loyal.

#7 Mega Dragalge ex (SAR) — ¥3,133 (~$21)

The poison-dragon Mega Evolution gets a moody Special Art Rare. Competitive players are eyeing Mega Dragalge ex for its disruptive ability in the MEGA format.

#8 AZ’s Tranquility (SAR) — ¥1,584 (~$11)

AZ’s supporter card connects to the Kalos storyline from Pokemon X/Y. The SAR features the tall, somber character in a reflective scene. At ¥1,584, it’s the most affordable SAR in the set.

Roxie's Performance SAR supporter card from Ninja Spinner with concert artwork
Roxie’s Performance SAR card from Ninja Spinner

#9 Special Red Card (SR) — ¥1,407 (~$9)

A highly playable trainer card that’s seeing competitive adoption. The SR variant adds collection value to a card you’ll want in your deck regardless.

#10 Mathieu (SR) — ¥1,220 (~$8)

Rounding out the Top 10, Mathieu’s SR provides another supporter option for the MEGA format.

Ninja Spinner M4 Japanese Pokemon booster box sealed
Ninja Spinner booster box sealed with shrink wrap

Should You Buy a Ninja Spinner Box?

At ¥10,000 (~$67) per box, Ninja Spinner sits at the affordable end of the MEGA series spectrum — and the 33% SAR pull rate is the real story here.

For Collectors: Strong Buy

Greninja is the single most popular Pokemon globally, and three of the Top 10 cards feature Mega Greninja ex across MUR, SAR, and SR rarities. The 33% SAR rate means roughly 1-in-3 boxes contains a Special Art Rare worth ¥1,584-¥40,429. Those are solid odds.

If you’re a Greninja fan specifically, this is a must-open set. If you prefer guaranteed value, buying the SAR single at ¥40,429 (~$270) locks in the card without the variance.

Collector’s Tip

Open 3 boxes (¥30,000) for the best odds: statistically, you’ll pull at least 1 SAR. If it’s the Greninja SAR (1-in-6 chance among SARs), that single card covers all three boxes.

For Competitive Players: Selective Buy

Big Catch Net and Bubble Water Energy are the meta-relevant cards from this set. Both are regular rarity and available for under ¥300 each as singles. Special Red Card (SR, ¥1,407) is seeing competitive play across multiple archetypes.

If you’re buying strictly for play, singles are more efficient than boxes. But if you also collect, the box gives you competitive staples plus chase card upside.

For Sealed Collectors: Buy Now

At ¥10,000, Ninja Spinner boxes are among the cheapest sealed MEGA products. Compare that to MEGA Dream ex at ¥9,200 (High Class Pack) or Inferno X at ¥8,000 (which launched at ¥7,500 and has appreciated). Greninja’s enduring popularity suggests strong long-term sealed demand.

Feature Ninja Spinner (M4) MEGA Dream ex (M2A) Inferno X (M3)
Type Expansion Pack High Class Pack Expansion Pack
BOX Price ¥10,000 (~$67) ¥9,200 (~$61) ¥8,000 (~$53)
Top Card Value ¥94,223 (MUR) ¥89,000 (MUR) ¥138,000 (MUR)
SAR Rate ~1/3 boxes ~1/4 boxes ~1/5 boxes
Chase Pokemon Greninja Gengar Charizard
Packs/Box 30 10 30

Pull Rates & Box EV Breakdown

Every Ninja Spinner box guarantees 4 RRs, 3 ARs, and 1 SR-or-better card. The data below comes from Japanese community tracking of 1,000+ box openings.

Pull Rates by Rarity

Rarity Per Box Chance Notes
RR (Double Rare) 4 Guaranteed 4 per box, every box
AR (Art Rare) 3 Guaranteed 3 per box, every box
SR (Super Rare) ~0.77 ~65% of boxes Fills the high-rarity slot when no SAR/MUR
SAR (Special Art Rare) ~0.33 ~33% of boxes 1-in-3 boxes (6 variants)
MUR (Mega Ultra Rare) ~0.02 ~2% of boxes 1-in-50 boxes

Pull rate estimates based on 1,000+ box community data. Not officially confirmed by The Pokemon Company.

Box EV Calculation

Here’s what an average Ninja Spinner box returns in card value, based on current market prices:

Rarity Cards/Box Avg Card Value EV Contribution
MUR 0.02 ¥94,223 ¥1,884
SAR 0.33 ¥9,223 ¥3,044
SR 0.65 ¥700 ¥455
AR 3.0 ¥750 ¥2,250
RR 4.0 ¥200 ¥800
R/U/C bulk 22.0 ~¥20 ¥440
Total Box EV ¥8,873
Box EV Summary

BOX price: ¥10,000 → Total EV: ¥8,873 → EV ratio: 89%. The SAR slot alone contributes ¥3,044 (34%) of total box value.

For a standard expansion pack, 89% EV is strong. The SAR slot does the heavy lifting — that 33% chance at a card pool averaging ¥9,223 contributes ¥3,044 to every box’s expected value. The MUR adds another ¥1,884 in expected value despite the 2% pull rate, purely because of its ¥94,223 price tag.

Ninja Spinner pull rate breakdown showing SAR 33% and MUR 2% chances per box
Pull rate distribution chart for Ninja Spinner

Variance Reality Check

Most boxes will return ¥3,500-¥5,000 in value (SR + ARs + RRs). The EV rises to ¥8,873 because roughly 1-in-3 boxes hits a SAR worth ¥1,584-¥40,429, and 1-in-50 hits the MUR jackpot.

If you open 3 boxes (¥30,000), you’ll likely pull at least one SAR. If that SAR is the Greninja (roughly 1-in-6 SARs), your single-card return is ¥40,429 — more than covering all three boxes.

JPN vs English: Ninja Spinner vs Chaos Rising

The English equivalent — Chaos Rising — arrives May 22, 2026. Here’s how the two versions compare for buyers deciding which to pick up.

Release Timeline

JPN buyers have had Ninja Spinner since March 13. That’s a 70-day head start over English Chaos Rising. For collectors who want to grade and flip, early PSA submissions on JPN cards will return before Chaos Rising even launches.

Historical JPN Premium

JPN MEGA series cards have consistently traded above their English counterparts:

  • MUR cards: 25-40% JPN premium
  • SAR cards: 15-30% JPN premium
  • SR cards: 10-20% JPN premium

This premium typically peaks in the first 3 months after the English release, then gradually narrows over 6-12 months. Read our full Japanese vs English Pokemon cards comparison for detailed data.

Which Version Should You Buy?

Factor JPN (Ninja Spinner) ENG (Chaos Rising)
Release March 13, 2026 ✓ May 22, 2026
Box Price ~$67 (¥10,000) ~$50-60 (estimated)
Card Premium 15-40% higher Baseline
Grading Appeal Higher PSA 10 rates Standard
Tournament Play JPN-only events Official tournaments ✓
Resale Market Global demand Regional demand
Version Verdict

Collectors: JPN version — the 15-40% premium and 70-day early access are worth the extra $10-15 per box.
Competitive players: Wait for Chaos Rising — English cards required for sanctioned tournaments.
Investors: JPN sealed boxes — Greninja’s global popularity means the JPN premium should hold.

Where to Buy Ninja Spinner

Ninja Spinner boxes are available through Japanese export shops that ship worldwide.

Buy from Japan

Our store carries Ninja Spinner booster boxes with shrink wrap intact and serial-tracked authentication. Every box is individually serial-numbered — if any tampering is detected, we can trace it back to the source and ban the supplier. That’s the level of quality control we maintain on every box that leaves Tokyo.

For more on buying Japanese Pokemon cards internationally, check our complete guide to buying from Japan.

Shipping & Import Tips

  • Delivery: 5-10 business days to US/UK/AU
  • Tracking: Full tracking on all orders
  • Customs: US import duty is currently 15% on trading cards (as of March 2026)
Ninja Spinner M4 booster box available for international shipping from Japan
Ninja Spinner booster box product photo
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Ninja Spinner Booster Box (M4)
From ~$67 / ~¥10,000
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The Bottom Line

Three things to know about Ninja Spinner:

  1. Mega Greninja ex MUR at ¥94,223 ($628) is the MEGA series’ biggest chase card — and at 2% pull rate, the singles market is the realistic path for most collectors
  2. SAR at 33% pull rate is the real value story — 1-in-3 boxes hits a SAR averaging ¥9,223. That’s strong for a ¥10,000 box
  3. JPN version gives you 70 days before Chaos Rising — plus a 15-40% price premium that historically holds for 6-12 months

If Greninja is your Pokemon, this set is built for you. If you’re on the fence, the 89% EV ratio and 33% SAR rate make Ninja Spinner one of the better value propositions in the MEGA series.

Check out our complete ranking of all MEGA series sets to see how Ninja Spinner stacks up.

Froakie AR Art Rare from Ninja Spinner, most valuable AR card in the set at ¥1,280
Froakie AR card from Ninja Spinner — top Art Rare in the set

FAQ

What are the actual pull rates for Ninja Spinner?

Based on 1,000+ box community data: 4 RRs and 3 ARs guaranteed per box, plus 1 SR/SAR/MUR slot. SAR rate is approximately 33% (1-in-3 boxes), and MUR rate is approximately 2% (1-in-50 boxes). These are community-tracked estimates, not officially confirmed rates.

How much is Mega Greninja ex MUR worth?

As of March 2026, Mega Greninja ex MUR is trading at approximately ¥94,223 (~$628) on the Japanese secondary market. Buy-back prices from shops are ¥60,000-70,000. Prices may adjust as the market stabilizes post-launch.

Is a Ninja Spinner box worth buying?

At ¥10,000 (~$67), the box EV is approximately ¥8,873 (89% return). The 33% SAR pull rate gives you solid odds at cards worth ¥1,584-¥40,429. For Greninja collectors, it’s a strong buy. For pure investment, sealed boxes may offer better long-term returns than opening.

When does Ninja Spinner release in English?

The English equivalent, Chaos Rising, releases May 22, 2026, with pre-release events from May 9-17. It will contain the same Mega Greninja ex cards adapted from Ninja Spinner plus cards from other JPN sets.

How many SARs are in the Ninja Spinner set?

Ninja Spinner contains 6 Special Art Rare cards: Mega Greninja ex, Cinccino ex, Mega Floette ex, Roxie’s Performance, Mega Dragalge ex, and AZ’s Tranquility. Each box has approximately a 33% chance of containing one SAR.

What’s the difference between Ninja Spinner and MEGA Dream ex?

Ninja Spinner is a standard expansion pack (30 packs, ¥5,400 MSRP) while MEGA Dream ex is a High Class Pack (10 packs, higher rarity rates). Ninja Spinner has a 33% SAR rate versus MEGA Dream ex’s ~25%. The top chase cards differ: Mega Greninja ex MUR (¥94,223) vs Mega Gengar ex MUR (¥89,000).

Will Mega Greninja ex go up in value?

Historically, Pokemon of the Year characters and debut cards tend to appreciate. Mega Charizard X MUR from Inferno X launched at ¥100,000 and rose to ¥138,000. Greninja has comparable popularity, but past performance does not guarantee future results. Monitor the market through SNKRDUNK for real-time pricing.

Should I buy JPN Ninja Spinner or wait for English Chaos Rising?

JPN versions of MEGA series cards trade at a 15-40% premium over English versions. The JPN release gives you a 70-day head start for collecting and grading. If you want cards for competitive tournament play, wait for Chaos Rising (English cards required). For collecting and investment, JPN is the stronger choice.



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