One box, one supporter, sixty cards, and no idea which of a hundred decks you’re getting until you open it. That’s the entire pitch of “Start Deck 100” — and of its 2025 sequel, MEGA Start Deck 100 Battle Collection — and Japan has now run the format twice, four years apart.
The original Sword & Shield-era Start Deck 100 (set code SI) was a low-priced impulse buy. The 2025 sequel, MEGA Start Deck 100 Battle Collection (set code MC), rebuilt the concept around the MEGA era’s ex Pokemon. Both share the same random-deck gimmick; both hide genuine chase cards inside an otherwise budget product.
The two releases differ in deck contents, card numbering and chase finishes: MC layers Mirror, AR Style, SR and SAR Style prints on top of its base checklist. We ship Japanese sealed product and graded singles out of Tokyo.
MEGA Start Deck 100 Battle Collection (MC, 2025) is the MEGA-era sequel to the 2021 Sword & Shield Start Deck 100 (SI), built on the same sealed, randomized 60-card deck format. Its chase prints include Boss’s Orders SR Style, Banette AR Style, MEGA Charizard Y ex Mirror and MEGA Feraligatr ex SAR Style; see PSA 10 back orders.
- Set reference: Japanese TCG card lists.
- The sealed MEGA Start Deck 100 Battle Collection deck and the MEGA Start Deck 100 Battle Collection – White Box are currently listed on our store.
Store prices are our own listed or back-order prices in Japanese yen. USD figures convert at ¥154/USD, approximate.
Two Start Deck 100 Releases, Four Years Apart
“Start Deck 100” is a simple idea: instead of a booster pack, you buy a sealed, pre-built 60-card deck — but you don’t know which of 100 possible deck numbers you’re getting until you open the box. Japan has run this format twice.
| Start Deck 100 (2021) | Battle Collection (2025) | |
|---|---|---|
| Set code | SI | MC |
| Release date | December 17, 2021 | December 19, 2025 |
| Retail price | ¥790 (tax included) | ¥891 (tax included) |
| Deck contents | 60 cards + damage counter/marker sheet | 60 cards + damage counter/marker sheet |
| Card number denominator | /414 | /742 |
| Guaranteed common card | Supporter “Jun” in every deck | Poke Pad + Lillie’s Determination in every deck |
Each release randomizes across 100 numbered decks, so two buyers opening the same box design can walk away with completely different Pokemon. The chase value sits in a handful of secret, high-number cards layered on top of the regular checklist.
The Original: Sword & Shield Start Deck 100 (2021)
The 2021 “Pokemon Card Game Sword & Shield Start Deck 100” launched well below the price of a standard booster box and used set code SI with a card denominator of /414. Each box contains one full 60-card constructed deck, randomly assigned from 100 possible deck numbers (001–100), plus a damage counter/marker sheet.
Every one of the 100 decks includes the same Supporter card, “Jun,” giving the product a shared baseline regardless of which deck you pull.
The real reason collectors still track this release is its secret-card tier. Beyond the standard checklist, SI carries a run of over-numbered secret cards (415 and up) with upgraded finishes — including Pikachu V (SI 415/414) and Zamazenta V (SI 417/414). These are the cards that turned an inexpensive sealed product into something worth opening in bulk in 2021 and 2022.
Anything numbered above 414 on an SI-coded card is outside the regular 100-deck checklist and one of the upgraded secret pulls — that’s the number to check first.
The MEGA Reboot: Start Deck 100 Battle Collection (2025)
Four years later, the format returned as “Pokemon Card Game MEGA Start Deck 100 Battle Collection” under set code MC, built around the MEGA era’s ex Pokemon. The mechanic is identical — a sealed, randomized 60-card deck plus a damage counter/marker sheet — but every one of the 100 decks now includes at least two ex Pokemon, and the shared cards across all decks are Poke Pad and Lillie’s Determination.
The card denominator on MC is /742, reflecting the set’s full checklist as printed on the cards themselves. On top of the 100 numbered decks, MC adds two secret pulls — a secret deck 101 and a gold-foil variant of deck 001 — bringing the total to 102 possible deck pulls across numbers 001–100 plus the two secrets.
Deck 001 is the Grass-type build, and it’s a useful example of how these decks are constructed: it’s centered on Erika’s Oddish, which evolves into Erika’s Gloom and then Erika’s Vileplume ex, for a full 60-card list. The gold-foil secret variant of this same deck swaps in a gold-etched MEGA Charizard Y ex (MC 085/742), whose attack “Prism Burst Y” hits for 280 damage.
For a broader look at how MEGA Charizard Y ex and other ex Pokemon fit into the current chase-card landscape, see our Mega Evolution Pokemon cards chase card guide.
Chase Variants: Mirror, SAR Style and SR Pulls
The reason Battle Collection decks are worth opening in volume — rather than treated as a single fixed 60-card product — is the alternate-finish layer stacked on top of the base checklist:
- Mirror finish — a mirrored treatment applied across select cards in the set, confirmed on base-checklist pulls such as MEGA Charizard Y ex (MC 085/742).
- AR Style — a full-illustration alternate treatment, confirmed on cards such as Banette (MC 749/742).
- SR finish — confirmed on cards such as Boss’s Orders (MC 760/742).
- SAR Style (full-illustration, high-rarity finish) — the rarest tier, confirmed on cards such as MEGA Feraligatr ex (MC 763/742).
Each of this quartet is offered as a PSA 10 back order — sourced to order; the product page shows the current terms: a Mirror-finish MEGA Charizard Y ex, MC 085/742, at ¥18,663 (~$121), an AR-Style Banette, MC 749/742, at ¥13,850 (~$90), an SR-finish Boss’s Orders, MC 760/742, at ¥17,357 (~$113), and an SAR-Style MEGA Feraligatr ex, MC 763/742, at ¥32,406 (~$210).
Store Listings and Back Orders
| Card / Product | Set | Price |
|---|---|---|
| MEGA Start Deck 100 Battle Collection (sealed) | MC | Currently listed at ¥975 (~$6) |
| PSA 10 Boss’s Orders SR Style [MC 760/742] | MC | ¥17,357 (~$113) |
| PSA 10 MEGA Charizard Y ex, Mirror [MC 085/742] | MC | ¥18,663 (~$121) |
| PSA 10 Banette AR Style [MC 749/742] | MC | ¥13,850 (~$90) |
| PSA 10 MEGA Feraligatr ex SAR Style [MC 763/742] | MC | ¥32,406 (~$210) |
On September 24, 2026 the lowest asking price on SNKRDUNK was ¥1,100 for a sealed Battle Collection deck, ¥5,700 raw and ¥50,000 PSA 10 for Boss’s Orders SR Style, and ¥3,900 raw and ¥32,800 PSA 10 for MEGA Charizard Y ex Mirror — asking prices only, not sale prices.
Where to Buy Start Deck 100 Cards from Japan
We ship sealed Battle Collection decks and graded PSA 10 singles from Tokyo. If you want to chase the SAR, Mirror and SR pulls yourself, start with the sealed MEGA Start Deck 100 Battle Collection deck or the MEGA Start Deck 100 Battle Collection – White Box listing. If you’d rather have a specific card already graded PSA 10, the PSA 10 collection and PSA 10 card list are the direct routes.
Sourcing requests for a specific card go through Quick Order. For the wider MEGA-era card pool, see our Mega Symphonia (M1S) card list. And if you’re assembling a wider MEGA-era or Scarlet & Violet-era collection alongside your Start Deck 100 pulls, our Scarlet & Violet era guide and Japanese special box buying guide cover the surrounding product landscape.
Frequently Asked Questions
What is Start Deck 100?
Start Deck 100 is a Japanese Pokemon TCG product format: a sealed box contains one complete 60-card constructed deck plus a damage counter/marker sheet, randomly assigned from 100 possible deck numbers. Japan has released it twice — the original Sword & Shield Start Deck 100 (set code SI) in 2021, and MEGA Start Deck 100 Battle Collection (set code MC) in 2025.
What’s the difference between the 2021 and 2025 Start Deck 100 releases?
The 2021 release (SI) has a shared “Jun” Supporter card in every deck. The 2025 release (MC) has at least two ex Pokemon per deck, and Poke Pad plus Lillie’s Determination guaranteed in every deck.
What are the chase cards in MEGA Start Deck 100 Battle Collection?
The alternate-finish tiers include Mirror, AR Style, SR and SAR Style. Confirmed examples are a Mirror-finish MEGA Charizard Y ex (MC 085/742), an AR-Style Banette (MC 749/742), an SR-finish Boss’s Orders (MC 760/742), and an SAR-Style MEGA Feraligatr ex (MC 763/742) — SAR Style is the rarest tier.
What’s in deck 001 of MEGA Start Deck 100 Battle Collection?
Deck 001 is a Grass-type build centered on Erika’s Oddish, evolving into Erika’s Gloom and then Erika’s Vileplume ex, for a full 60-card deck. A gold-foil secret variant of this deck swaps in a gold-etched MEGA Charizard Y ex instead.
What secret cards were in the original 2021 Start Deck 100?
Beyond the standard checklist, the 2021 SI release included over-numbered secret cards such as Pikachu V (SI 415/414) and Zamazenta V (SI 417/414).
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