Mega Era Sets In Order: Complete Checklist

The Complete Mega Era Timeline

Every Mega era set to date, in release order, with total card count and the flagship chase card that headlines each box:

The cadence is fairly tight for most of the run — about seven to eight weeks between M2 and M2a, M2a and M3, and M3 and M4 — stretching to about ten weeks between M4 and M5, and again between M5 and M6. M1S and M1L are the one exception to the “one set at a time” pattern, launching on the exact same day as a matched pair.

For a card-by-card breakdown of every top chase across all eight sets, see our Mega Evolution chase card guide. For current market pricing on those same chases, our Mega booster box price index tracks the whole era in one table.

M2 Inferno X: The First Fire-Type Flagship

M2 Inferno X arrived September 26, 2025, about seven and a half weeks after the M1 pair, and it’s the first set in the era to give a Fire-type the flagship slot. At 116 total cards — 80 in the main set plus the SR/SAR/MUR chase run — it’s a noticeably bigger set than either M1 release.

Mega Charizard X ex is printed across four rarity tiers in this set — a regular version plus SR #094/080, SAR #110/080, and MUR #116/080 — among the most heavily reprinted flagships documented across the era so far. Its named attack, “Inferno X,” discards any number of Fire Energy from your Pokemon in play and deals 90 damage for each Energy discarded, a mechanic that rewards exactly the kind of Energy-heavy deck a Mega Charizard build usually runs. The M2 Inferno X box is currently listed at ¥15,980, the second-highest box price in the lineup after M6.

M3 Nihil Zero: A Coin-Flip Mega Zygarde

M3 Nihil Zero (also referred to as Munikis Zero) released January 23, 2026, roughly eight weeks after M2a. It settles back down to a more typical 117 total cards — 80 in the main set plus 37 secret-tier cards, the exact same secret-tier count M4 would carry two months later.

Mega Zygarde ex is a 310 HP Fighting-type flagship, printed as a Special Art Rare at #113/080 and again as an Ultra Rare gold-border version at #117/080. Its kit is built around two named attacks: “Gaia Wave” hits for 200 damage and reduces the damage this Pokemon takes on the opponent’s next turn by 30, while “Munikis Zero” flips a coin for each of the opponent’s Pokemon and deals 150 damage to each one that lands heads (Bench damage isn’t affected by Weakness or Resistance). It’s the second-least expensive box in the lineup: the M3 Nihil Zero box is listed at ¥8,112.

M6 Storm Emeralda: The Current Flagship

M6 Storm Emeralda released July 31, 2026 and, as of this writing, is the newest and most expensive set in the Mega era — a 113-card set (76 in the main set plus 37 secret-tier cards) built around Mega Rayquaza ex as the top Mega Ultra Rare.

Storm Emeralda is also the set that introduced the era’s newest structural gimmick: paired stadium cards, where a single piece of artwork is split across two separate Stadium card prints designed to be played and read together as a set. It’s the first time the Mega era has done anything like it, and it makes M6 the one release in this list where the gimmick itself — not just the flagship chase — is part of what collectors are chasing.

Shop this setM6 Storm Emeralda Booster Box Japanese Pokemon Card

¥10,246In stock

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For the full Storm Emeralda breakdown — every Mega Rayquaza ex printing, the paired-stadium mechanic explained, and pre-order details — see our Storm Emeralda M6 complete guide.

Where to Buy Mega Era Booster Boxes from Japan

We ship all eight Mega era boxes sealed from Tokyo with tracked delivery. If you’re building a complete run, ordering more than one box in the same shipment is the most efficient way to do it.

• Start with the current flagship: M6 Storm Emeralda, currently listed at ¥16,800.
• Browse the full sealed lineup — Mega era and beyond — in our booster box collection.
• Building a mixed order across several Mega era sets, or want a specific single instead of a sealed box? Our Quick Order page is the fastest way to put together a multi-set want-list in one checkout.

For deeper dives once you know which set you’re chasing, our Mega Evolution chase card guide covers every top pull across all eight sets, and our Mega booster box price index tracks how each box’s market price has moved since release.