Pokémon Ninja Spinner (M4) Set Review: Mega Greninja ex, Chase Cards, and Box Value
Pokémon Ninja Spinner (M4) Set Review: Mega Greninja ex, Chase Cards, and Box Value
Ninja Spinner (M4) is Japan's next Pokémon TCG expansion, releasing on March 13, 2026. It is the fourth set in the MEGA era and — crucially — the last set at the current 180 yen per pack price point before the May 2026 price increase. Here is everything you need to know about the set, its chase cards, and what value to expect from a booster box.
- Set: MEGA Expansion Pack Ninja Spinner (M4)
- Release: March 13, 2026 (Japan)
- Set size: 83 cards + ~35–40 secret rares (~120 total)
- Box: 30 packs × 5 cards = 150 cards per box
- Box price: 5,400 yen (~$36 USD) — last set at this price
- Chase card: Mega Greninja ex MUR (predicted 70,000+ yen)
- English equivalent: "Chaos Rising" — May 22, 2026
Set Overview
| Detail | Info |
|---|---|
| Set name | MEGA Expansion Pack Ninja Spinner |
| Set code | M4 |
| Release date (Japan) | March 13, 2026 |
| Main set size | 83 cards + ~35–40 secret rares (~120 total) |
| Packs per box | 30 packs (5 cards each) |
| Box price | 5,400 yen (~$36 USD) — last set at this price |
| Theme | Ninja / Kalos / Mega Evolution (Pokemon Legends: Z-A) |
| English equivalent | "Chaos Rising" — May 22, 2026 |
Ninja Spinner continues the MEGA era that began with Mega Brave / Mega Symphonia (M1) in August 2025, all built around the Mega Evolution mechanic tied to the Pokemon Legends: Z-A video game. This set delivers one of the most anticipated Mega Pokemon ever: Mega Greninja ex.
The Chase Card: Mega Greninja ex
Greninja consistently ranks as one of the most popular Pokemon worldwide, and this is its first-ever Mega Evolution card. The headline variant is the Mega Ultra Rare (MUR), which is predicted to be the most valuable card in the set.
Mega Greninja ex — Card Breakdown
- Type: Water
- Stage: Stage 2 (evolves from Frogadier)
- HP: 350
- Ability — Mortal Shuriken: Once per turn, if Mega Greninja ex is in the Active Spot, discard a Basic Water Energy from your hand to place 6 damage counters on any one of your opponent's Pokemon.
- Attack — Ninja Spinner: [W][W] 120+ damage. Return a Water Energy to your hand for an additional 80 damage (200 total).
- Weakness: Lightning ×2
- Retreat: 1
- Mega Evolution ex Rule: When knocked out, your opponent takes 3 Prize cards.
The combination of a free 60-damage snipe ability and a 200-damage attack makes Mega Greninja ex competitively viable, not just a collector piece. The Mortal Shuriken ability can pick off low-HP bench sitters or soften targets before the main attack.
Predicted Market Values
| Card | Estimated Market Price (JPY) |
|---|---|
| Mega Greninja ex MUR (Mega Ultra Rare) | 70,000+ yen |
| Mega Greninja ex SAR (Special Art Rare) | 25,000+ yen |
| Mega Dragalge ex SAR | 6,000+ yen |
| Mega Floette ex SAR | 5,000+ yen |
| Cinccino ex SAR | 4,500+ yen |
| Roxie's Performance SAR | 4,000+ yen |
| AZ's Comfort SAR | 3,500+ yen |
For reference, the Mega Charizard X ex MUR from Inferno X (M2) currently trades above 100,000 yen. Given Greninja's comparable popularity, the Mega Greninja MUR could approach that level — especially since this is a first-of-its-kind card for the character.
Other Notable Cards
Mega Floette ex (Psychic)
The Eternal Flower variant of Floette as a Mega Evolution ex. Its "Eternity Bloom" attack functions as a Psychic energy accelerator, attaching multiple energy cards from your deck to your bench Pokemon. Expect this to be a key support card for Psychic archetypes going forward.
Mega Dragalge ex (Dragon, 330 HP)
A disruptive Dragon-type that can strip Pokemon Tools and Special Energy with "Corrosive Liquid," then poison the Active Pokemon with "Pernicious Poison" — dealing 16 damage per poison check instead of the normal 1. Strong tech card against decks relying on Special Energy or Tools.
Gourgeist ex (Psychic, 270 HP)
Evolves from Pumpkaboo. "Ghost Touch" deals 140 damage and discards a random card from your opponent's hand — hand disruption on a solid body.
Cobalion ex (Metal)
"Metal Road" ability lets you move any amount of Metal Energy from benched Pokemon to Cobalion when it becomes Active — instant energy acceleration without needing Supporters. Paired with a strong attack, Cobalion could anchor a Metal deck.
Deoxys — All 4 Formes
Normal, Attack, Defense, and Speed Forme Deoxys all appear in a single set. This is the first time in a while that all four forms have been printed together, making it a collector's milestone for Deoxys fans.
Full Kalos Starter Lines
Chespin → Quilladin → Chesnaught, Fennekin → Braixen → Delphox, and Froakie → Frogadier → Mega Greninja ex. The complete Kalos trio is present, reinforcing the Generation VI / Z-A theme.
Trainer and Energy Highlights
- AZ's Tranquility (Supporter) — expected to have a SAR variant. AZ is a key character from Pokemon X/Y tied to the Kalos narrative.
- Prism Tower (Stadium) — iconic Kalos location, likely provides some form of energy or search support.
- Big Catch Net (Item) — expected to significantly boost Water-type deck viability.
- Bubble Water Energy (Special Energy) — provides Water-type utility beyond basic energy.
- Magnet Metal Energy (Special Energy) — synergises with the new Cobalion ex.
Expected Pull Rates Per Box
Based on MEGA era box openings (M1–M3), expect approximately:
| Rarity | Expected Per Box |
|---|---|
| SAR, SR, or MUR | 1 (the box "hit") |
| Art Rares (AR) | ~3 |
| Double Rares (RR) | ~4 |
| Supporter SR | 1 (rumoured guaranteed) |
With the Mega Greninja ex MUR predicted at 70,000+ yen and boxes costing 5,400 yen, the MUR alone could pay for 13+ boxes. The probability of pulling a specific MUR from a single box is very low, making sealed cases the preferred approach for those chasing it.
Why Ninja Spinner Matters Beyond the Cards
This is the last Japanese Pokemon set priced at 180 yen per pack. Starting May 2026, packs increase to 200 yen (+11.1%). This means:
- Ninja Spinner boxes at 5,400 yen are permanently locked in at the old price
- Sealed Ninja Spinner product may appreciate more than usual as the price floor for new sets rises
- The English equivalent ("Chaos Rising," May 22, 2026) may launch at the new international price point
Shop Japanese Pokemon Booster Boxes
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From MEGA era sets to Scarlet & Violet classics — all factory sealed with worldwide shipping.
Browse our Pokemon collection for Ninja Spinner booster boxes and sealed cases.
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Frequently Asked Questions
When does Pokemon Ninja Spinner release in Japan?
Ninja Spinner (M4) releases on March 13, 2026 in Japan. It is a MEGA Expansion Pack containing 83 main set cards plus approximately 35–40 secret rares. The English equivalent, "Chaos Rising," releases on May 22, 2026.
What is the most valuable card in Ninja Spinner?
The Mega Greninja ex MUR (Mega Ultra Rare) is predicted to be the most valuable card, with pre-release estimates above 70,000 yen. The SAR (Special Art Rare) version is estimated at 25,000+ yen. Greninja's massive popularity combined with this being its first Mega Evolution card drives the hype.
How many packs are in a Ninja Spinner booster box?
A Ninja Spinner booster box contains 30 packs with 5 cards per pack (150 cards total). Each box is expected to contain approximately 1 SAR/SR/MUR, 3 Art Rares, and 4 Double Rares.
Is Ninja Spinner the last set at 180 yen per pack?
Yes. Creatures Inc. announced on January 30, 2026 that booster packs will increase from 180 to 200 yen starting with sets releasing in May 2026. Ninja Spinner (March 13, 2026) is the final set at the current price point.
How does Mega Greninja ex compare to Mega Charizard X ex?
Both are high-HP Stage 2 Mega Evolution ex cards. Mega Charizard X ex MUR from Inferno X (M2) currently trades above 100,000 yen. Mega Greninja ex has a similar popularity level (Greninja regularly tops Pokemon fan polls) and offers a unique combination of bench snipe (Mortal Shuriken) and high damage (Ninja Spinner for 200). Market predictions suggest Mega Greninja MUR could reach a similar price tier.
What is the Mega Evolution ex rule?
When a Mega Evolution Pokemon ex is knocked out, your opponent takes 3 Prize cards instead of the usual 2. This is the trade-off for Mega Evolutions having higher HP (300–350+) and more powerful attacks than standard ex cards. It means you need to be strategic about when to deploy them.
Should I buy a booster box or a sealed case of Ninja Spinner?
If you are chasing the Mega Greninja ex MUR, a sealed case (12 boxes) gives you more pull attempts and a lower per-box cost. If you are collecting for fun or want to experience the set, a single box is a great starting point with guaranteed secret rare pulls. For long-term investment, sealed cases at the 5,400-yen box price represent strong value given the upcoming price increase.
