Ninja Spinner (M4) Review — The Most Chased Card of the Mega Evolution Era
Greninja is the closest thing the modern Pokémon fandom has to a consensus favourite. Popular in the games, popular in Smash, popular with people who don't even play the card game. So when Mega Greninja ex was announced, the outcome was never really in doubt.
Ninja Spinner released 13 March 2026 and Mega Greninja ex has been the most chased card of the era since. Not the most expensive at the absolute top — Storm Emeralda took that — but the most consistently, broadly wanted.
Four bites at the same apple
This is what makes M4 interesting to open. Mega Greninja ex appears at four separate rarity tiers in the same set: a Double Rare, a Secret Rare, a Special Art Rare, and the set's MUR. Four different price points for one Pokémon. It means a box that misses the top card can still deliver something worth having, which is not true of every set in this era.
The second chase
Cinccino ex, a 240 HP Colorless Special Art Rare, is the set's other genuine target — and it's the thing that separates M4 from M3, where Mega Zygarde ex is essentially the only card that matters.
Set shape
83 cards in the main set, 120 all up with the secret rares. Water and speed-themed throughout, tied to the Legends: Z-A Mega Evolutions.
Open it or buy singles?
Ninja Spinner boxes have stayed noticeably cheaper than the newer M-era sets, sitting well under what M6 asks. If you want the experience of opening a box with a real chase in it and you don't want to spend Storm Emeralda money to do it, M4 is the value play of the era. The English cards came out as Chaos Rising on 22 May 2026, so the set has already had its Western moment — which is exactly why the Japanese boxes have settled to a sane price.