Quick answer: Across 1,380 Storm Emeralda packs (46 booster boxes of early Japanese openings), expect ~2 Art Rares and ~2 Super Rares per box, plus ~1 gold Ultra Rare item — with roughly 83% of packs yielding nothing above a regular Rare. The top-tier Mega Rayquaza ex MUR and SAR each landed just 2 times across 46 boxes (~1 in 23 boxes each). Storm Emeralda releases in Japan in early August 2026; the English Delta Rain follows on 6 November 2026.
What Is Storm Emeralda?
Storm Emeralda is the Japanese Pokémon TCG set behind the upcoming English release Delta Rain (expected 6 November 2026). All 76 main-set cards were revealed on 23 July 2026, and the set launches in Japan in early August 2026. It is a Mega Evolution era set led by its mascot, Mega Rayquaza ex.
The set contains four Mega Evolution ex cards in total — Mega Rayquaza ex, Mega Golisopod ex, Mega Malamar ex, and Mega Golurk ex. It also introduces three split “Legendary” Stadium cards: Legendary Ocean Trench, Legendary Summit, and Legendary Lava Lake. Each is printed across two numbered halves that must be played together as a single Stadium, echoing the LEGEND cards of the HeartGold & SoulSilver era. The four Forces of Nature — Tornadus, Thundurus, Landorus, and Enamorus — share the same Incarnate Union Ability. Mega Gallade ex, a connected tournament promo, is shown at the end of the gallery but is not pulled from booster packs.
The first two Art Rares — Growlithe (078/076) and Groudon (084/076) — were revealed on 26 July 2026 in the pre-release pack opening video on the official Pokémon Card Channel. A further batch of secret rares has since surfaced, including Illustration Rare, Special Art Rare, and Full Art versions of cards such as Mega Rayquaza ex, Mega Golisopod ex, Kyogre, and Zinnia's Trust.
Box Contents & Pack Structure
Storm Emeralda follows the standard modern Japanese expansion structure:
- Booster Box — 30 packs per box
- Booster Pack — 5 cards per pack (Japanese layout)
- Main set — 76 cards, with secret rares numbered above 076 (Art Rares begin around 077/076; Growlithe is 078/076 and Groudon is 084/076)
Each box reliably delivers a handful of “hits” above the regular Rare / Double Rare baseline. From 46 tracked boxes, the typical box produced roughly 2 Art Rares, 2 Super Rares, and 1 gold Ultra Rare item card. The high-end Special Art Rares (SAR) and the top Mega Ultra Rares (MUR) are not a per-box occurrence — they landed roughly once every 23 boxes in our sample.
Sample breakdown
The 1,380 packs in this analysis were aggregated from early Japanese box openings:
- 46 booster boxes (30 packs each = 1,380 packs) tracked from early Japanese openings
- Reliable hits (AR / SR / gold UR) counted per box; top-tier pulls (SAR / MUR) counted across the full 46-box sample
- Regular Rare and Double Rare cards are not individually tallied — their count is derived by subtraction from the total
Pull Rate Data: 1,380 Packs
The table below expresses every hit as a rate per pack and a per-box expectation across a 30-pack Japanese booster box. The “R / RR only” row is the honest bottom line: the share of packs that contained nothing above a regular Rare or Double Rare.
46 booster boxes — 1,380 packs
| Rarity | Pulls | % per Pack | Per 30-Pack Box |
|---|---|---|---|
| AR (Art Rare) | 92 | 6.7% | ~2 |
| SR (Super Rare — full art ex / supporter) | 92 | 6.7% | ~2 |
| UR (gold Ultra Rare item / tool / energy) | 46 | 3.3% | ~1 |
| SAR (Special Art Rare) | 2 | 0.14%* | ~0.04 (≈1 in 23 boxes) |
| MUR (Mega Ultra Rare) | 2 | 0.14%* | ~0.04 (≈1 in 23 boxes) |
| R / RR only (no AR or above) | 1,146 | 83.0% | ~25 |
| Total | 1,380 | 100% | 30 |
*Storm Emeralda releases in Japan in early August 2026; these numbers are aggregated from early Japanese box openings totalling 46 boosters. The AR, SR, and gold UR rates are already stable at this sample size, but the SAR and MUR rows rest on just 4 combined pulls across 1,380 packs — treat those as directional estimates that will tighten as more boxes are opened. We will update the figures once the set is fully in circulation.
Named notable pulls
- MUR (Mega Ultra Rare): 2 pulled across 46 boxes — both Mega Rayquaza ex, the set's top chase
- SAR (Special Art Rare): 2 pulled across 46 boxes — both Mega Rayquaza ex SAR
- Confirmed Art Rares: Growlithe (078/076) and Groudon (084/076) were the first two ARs revealed
- Other secret rares surfaced: Illustration Rare, Special Art Rare, and Full Art versions of Mega Golisopod ex, Kyogre, and Zinnia's Trust — appearing within the AR / SR / SAR tiers above
- Gold UR items: ~1 per box; the gold item / tool / energy slot was the most consistent premium hit after AR and SR
Key findings
- Reliable floor: a box averages ~2 AR + ~2 SR + ~1 gold UR — five dependable hits per 30 packs
- Blank packs: ~83.0% of packs held only a regular Rare or Double Rare — about 25 of every 30 packs
- Top-tier cadence: SAR and MUR each landed ~1 per 23 boxes (2 of each from 1,380 packs); still a small sample — treat as an early estimate
- Mascot concentration: every top-tier pull in our sample was Mega Rayquaza ex — the set's value is heavily concentrated in the mascot chase line
Rarity Breakdown
| Rarity Tier | Description | Observed Rate | Expected Per Box |
|---|---|---|---|
| R / RR | Regular Rare and Double Rare (includes base ex) | 83.0% of packs | ~25 |
| AR (Art Rare) | Illustration-style full art of a non-ex Pokémon | 6.7% of packs | ~2 |
| SR (Super Rare) | Full art ex, Mega ex, or supporter | 6.7% of packs | ~2 |
| UR (Ultra Rare) | Gold item, tool, or energy card | 3.3% of packs | ~1 |
| SAR (Special Art Rare) | Premium special-illustration full art (top collector tier) | 0.14% of packs | ~0.04 (≈1 in 23 boxes) |
| MUR (Mega Ultra Rare) | Textured Mega card — the set-topping chase | 0.14% of packs | ~0.04 (≈1 in 23 boxes) |
SAR and MUR rates are drawn from just 4 combined pulls across 1,380 packs. Expect them to move as more boxes are opened; the AR, SR, and UR rates are already stable at this sample size.
The Chase Cards: Mega Rayquaza ex MUR & SAR Odds
Storm Emeralda's value is concentrated in the Mega Rayquaza ex chase line, with a supporting cast of Special Art Rares and the two confirmed headline Art Rares. Card numbering above the 076 base set is being finalised at the Japanese release; confirmed numbers are shown, and the rest are marked TBC. Prices are pre-release estimates and will move sharply once the set is in circulation.
| Card | Rarity | Set Number | Est. Price (USD) | Notes |
|---|---|---|---|---|
| Mega Rayquaza ex | MUR | TBC | ~$300 | Set-topping textured Mega card; mascot premium keeps supply capped |
| Mega Rayquaza ex | SAR | TBC | ~$120 | The version most collectors want; Champions Roar energy-ramp attacker |
| Kyogre | SAR | TBC | ~$45 | Savage Whirlpool spread attack scales with a Legendary Stadium in play |
| Zinnia's Trust | SAR | TBC | ~$40 | Playable switch-and-move-energy supporter; strong Delta-era character appeal |
| Mega Golisopod ex | SAR | TBC | ~$30 | Efficient 340 HP stage-one attacker (Finishing Blow); playable and collectible |
| Mega Golurk ex | SR | TBC | ~$15 | 350 HP; Goliath Punch hits 300 but needs 10+ cards in hand |
| Mega Malamar ex | SR | TBC | ~$12 | 320 HP bench-spread attacker; niche competitively |
| Groudon | AR | 084/076 | ~$10 | Confirmed Art Rare; Fighting attacker that scales with a Legendary Stadium |
| Growlithe | AR | 078/076 | ~$8 | First Art Rare revealed; popular Gen I fan favourite |
| Legendary Stadiums (each) | R / holo | TBC | ~$2–5 | Split two-half Stadiums — buy the halves as a set, never chase through packs |
Prices as of pre-release, July 2026 — speculative estimates only. Mega Rayquaza's popularity as a mascot could push the MUR well above these figures at launch; verify current market prices before buying or selling.
About the Mega Rayquaza ex chase line
Mega Rayquaza ex appears across the AR, SR, SAR, and MUR tiers, which is why it dominated every top-tier pull in our sample. Competitively it is a Champions Roar energy-ramp attacker that scales with Fire and Lightning energy on your board — the set's new Magmortar and the Mega Rayquaza cap tool give it fresh support. For collectors, the SAR is the sweet spot: the artwork most people want, at a fraction of the MUR's price and roughly the same pull odds within our sample.
Price Guide (USD & SGD)
USD is the reference currency; SGD converted at approximately 1 USD = 1.35 SGD. These are pre-release estimates (July 2026) and will move significantly once Storm Emeralda is in circulation and again when the English Delta Rain launches in November 2026.
| Card | Rarity | Est. USD | Est. SGD |
|---|---|---|---|
| Mega Rayquaza ex | MUR | ~$300 | ~SGD 405 |
| Mega Rayquaza ex | SAR | ~$120 | ~SGD 160 |
| Kyogre | SAR | ~$45 | ~SGD 60 |
| Zinnia's Trust | SAR | ~$40 | ~SGD 54 |
| Mega Golisopod ex | SAR | ~$30 | ~SGD 40 |
| Mega Golurk ex / Mega Malamar ex | SR | ~$12–15 | ~SGD 16–20 |
| Growlithe / Groudon | AR | ~$8–10 | ~SGD 11–14 |
| Gold UR items | UR | ~$6–15 | ~SGD 8–20 |
Pre-release estimates only. Day-one Japanese prices routinely drop 20–40% within the first month as supply settles. Not financial advice.
Should You Open or Buy Singles?
Open if:
- You enjoy the pack-opening experience and are comfortable with the variance (over 80% of packs yield nothing above a regular Rare)
- You want to build toward the AR / SR set — ~2 AR and ~2 SR per box is a solid, dependable pull frequency
- You want a genuine (if long-odds) shot at a Mega Rayquaza ex SAR or MUR and treat it as a bonus, not the plan
- You like the new split Legendary Stadium cards and want to pull the halves yourself
Buy singles if:
- You specifically want the Mega Rayquaza ex MUR or SAR — at ~1 per 23 boxes each, the expected cost to pull either far exceeds the single price
- You want a specific SAR (Kyogre, Zinnia's Trust, Mega Golisopod ex) — targeting one card through opening is far more expensive than buying it
- You want the Legendary Stadiums for play — buy the two halves as a cheap set rather than chasing them through packs
The numbers on chasing Mega Rayquaza ex
- Observed MUR rate: ~1 per 23 boxes (2 across 46 boxes)
- Observed SAR rate: ~1 per 23 boxes (2 across 46 boxes, both Mega Rayquaza ex)
- At a typical Japanese box price, 23 boxes to statistically hit one MUR costs far more than the ~$300 single
- The mascot appears across four rarity tiers, so a random box is more likely to give you a lower-tier Rayquaza than the version you actually want
The honest bottom line: Storm Emeralda is a fun set to crack once or twice — the AR and SR floor is reliable and the Mega Rayquaza ex chase line is genuinely exciting. But with 80%+ of packs blank and both top tiers hitting roughly once every 23 boxes, the math does not favour opening to chase the Mega Rayquaza ex MUR or SAR. If you want a specific card, buy the single.
Buy Storm Emeralda on TCGPlayer
Frequently Asked Questions
Does every Storm Emeralda pack guarantee a Mega card or hit?
No. Across 1,380 packs (46 booster boxes), roughly 83% of packs yielded only a regular Rare or Double Rare — about 25 of every 30 packs in a box. A typical box delivers around 2 Art Rares, 2 Super Rares, and 1 gold Ultra Rare item, with SAR and MUR cards appearing far less often.
How many Art Rares and Super Rares do you get per box?
From 46 tracked boxes, the typical box produced about 2 Art Rares (AR), 2 Super Rares (SR), and 1 gold Ultra Rare (UR) item. That is roughly 6.7% per pack for AR, 6.7% for SR, and 3.3% for the gold UR — consistent, box-to-box hits.
What is the SAR and MUR pull rate in Storm Emeralda?
Across 1,380 packs we recorded 2 Special Art Rares and 2 Mega Ultra Rares — approximately 1 in every 23 boxes for each tier. Both SARs observed were Mega Rayquaza ex. This is a small sample for the top rarities, so treat it as an early estimate.
Is Mega Rayquaza ex worth chasing through box openings?
Almost never. At roughly 1 MUR per 23 boxes and 1 SAR per 23 boxes, the expected cost to hit the Mega Rayquaza ex MUR or SAR through opening far exceeds buying the single. As the mascot, Rayquaza is also spread across the AR, SR, SAR, and MUR tiers, so a random box is more likely to give you a lower-tier version than the one you want.
How does Storm Emeralda compare to Abyss Eye and Ninja Spinner?
Storm Emeralda uses the same Japanese Mega Evolution era box structure — 30 packs per box with roughly 2 AR, 2 SR, and 1 gold UR guaranteed, and SAR/MUR well under 1 per box. Compared with Abyss Eye (Mega Darkrai) and Ninja Spinner (Mega Greninja), the reliable per-box hit rate is similar, but Storm Emeralda concentrates its value into the Mega Rayquaza ex chase line and adds the new split Legendary Stadium cards.
When does the English Delta Rain release?
Delta Rain, the English localisation of Storm Emeralda, is expected on 6 November 2026 with a near-identical 76-card main set. Japanese and English pack structures differ, so these pull rates are specific to the Japanese product — the English set will have its own pack layout at launch.
What are the Legendary Stadium cards?
Storm Emeralda introduces three split “Legendary” Stadiums — Legendary Ocean Trench, Legendary Summit, and Legendary Lava Lake. Each is printed across two numbered halves played together as a single Stadium, echoing the LEGEND cards of the HeartGold & SoulSilver era. They power up cards like Kyogre and Groudon, whose attacks deal bonus damage while a Legendary Stadium is in play.
Disclaimer: Pull rates are early community estimates from 1,380 packs (46 booster boxes) of pre-release Japanese openings. The AR, SR, and UR rates are stable at this sample size; the SAR and MUR rates come from just 4 combined pulls — treat them as directional, not confirmed odds. All prices are pre-release estimates — verify current prices before buying or selling. This is not financial advice.