Storm Emeralda M6 Japanese Pokemon Booster Box
 
The Mega era roars on. Storm Emeralda (ストームエメラルダ) M6 is the next Japanese Mega Evolution-era expansion, and it leads with one of the most electrifying box arts in recent memory — Mega Rayquaza ex tearing across the packaging in a storm of green, gold, and blue energy. For collectors and competitive players who've been chasing the Mega revival, this is a must-preorder set.
Releases July 31, 2026. More chases to be revealed soon!

 
📋 Set Overview
Storm Emeralda M6 features a 76-card main set, plus an estimated 35 to 40 secret rares — for a rough total of around 115 cards. That secret rare depth is what makes M6 exciting for collectors: a large chase pool means a wide variety of high-value pulls, alternate arts, and premium treatments to hunt across the set.
 
✨ The Face of the Set: Mega Rayquaza ex
 
Mega Rayquaza ex anchors Storm Emeralda across the box, packaging, and pack art — and it's easy to see why. Rayquaza is one of the most iconic Legendary Pokémon in the entire franchise, and its Mega Evolution is a fan-favorite design that collectors have wanted back in the spotlight for years.
The Mega Rayquaza ex (058/076 RR) is a 280 HP powerhouse with the はしゃのほうこう (Ruler's Roar) ability — a setup engine that digs energy from the top of your deck — and ストームエメラルダ (Storm Emeralda), a scaling attack dealing 50× damage based on Fire and Lightning energy across your board. Illustrated by takuyoa, the RR treatment captures Mega Rayquaza mid-strike in a burst of prismatic energy that translates into one of the most dynamic cards in the set.
 
As the set's headline Pokémon, Mega Rayquaza ex will anchor the premium chase lineup — and with 35 to 40 secret rares in the set, expect alternate arts and elevated treatments of this card to be among the most sought-after pulls when the full list is revealed.