Mask of Change (SV6): The Japanese Set Behind Twilight Masquerade (2024)
By Dexhaul Team · October 9, 2026 · 8 min read
Japanese Mask of Change (SV6) released on April 26, 2024 and is the main source set for English Scarlet & Violet: Twilight Masquerade (SV06), which followed on May 24, 2024. According to Limitless TCG's SV6 index, every card in the JP set made its English debut in Twilight Masquerade, with no SV6 cards split to a later EN release.
The set's theme is Ogerpon, the masked Pokémon introduced in the Teal Mask DLC for Scarlet and Violet. Ogerpon swaps between four mask forms and four types within a single battle, which is why SV6 is the only set in the Scarlet and Violet era with four distinct ex cards for one Pokémon. This guide maps JP SV6 to EN TWM, identifies the key chase cards, and compares the two booster box formats side by side.
Set mapping at a glance
Mask of Change and Twilight Masquerade are closely linked but structurally different products. The table below covers the key format differences a buyer will notice before opening a single pack.
| Feature | Mask of Change (SV6) | Twilight Masquerade (SV06) |
|---|---|---|
| Language | Japanese | English |
| Release date | April 26, 2024 | May 24, 2024 |
| Set code | SV6 | SV06 / TWM |
| Cards per pack | 5 | 10 |
| Packs per booster box | 30 | 36 |
| Cards per booster box | 150 | 360 |
| Primary spotlight Pokémon | Ogerpon (all 4 forms) | Ogerpon (all 4 forms) |
| Tournament legal (English events) | No | Yes |
The JP booster box yields 150 cards, which is less than half the card count of the EN box. That gap surprises many collectors buying their first Japanese import: 30 packs at 5 cards is a very different experience from 36 packs at 10 cards, even when the total price is close.
On this page 7 sections
Why Twilight Masquerade draws from two Japanese sets
This is the one important thing to know before buying Japanese cards from this era. English Twilight Masquerade did not come from SV6 alone. It combined cards from two Japanese sets released two months apart: SV5a Crimson Haze (March 22, 2024) and SV6 Mask of Change (April 26, 2024).
SV5a Crimson Haze featured Bloodmoon Ursaluna ex as its spotlight card, along with the Pokémon introduced in the Indigo Disk DLC. SV6 Mask of Change featured Ogerpon and the Teal Mask DLC Pokémon. The two sets covered different DLC arcs, but The Pokémon Company released them both into one English set on May 24, 2024.
The practical result: if you open a Japanese SV6 booster box and look for Bloodmoon Ursaluna-EX, you will not find it. That card came from SV5a, not SV6. For a complete picture of what is in each JP source set, the Limitless TCG SV6 index lists each card alongside its EN print location and number.
Our companion guide for the SV5a side covers Crimson Haze and its Twilight Masquerade cards in detail.
Key cards spotlighted in Mask of Change
Ogerpon is the defining card of SV6. The set includes all four Ogerpon ex forms: Teal Mask (Grass type), Wellspring Mask (Water type), Hearthflame Mask (Fire type), and Cornerstone Mask (Rock type). Each is a separate card with a distinct type and unique artwork.
No other Pokémon in the Scarlet and Violet era has four distinct ex cards in the same set. The reason is the game mechanic itself: Ogerpon holds a different mask to change form and type mid-battle. The Bulbapedia entry for Twilight Masquerade confirms each form received an ex treatment in both JP and EN.
| Card | JP set | EN set | Type | Note |
|---|---|---|---|---|
| Ogerpon ex (Teal Mask) | Mask of Change (SV6) | Twilight Masquerade | Grass | Box art; JP and EN chase |
| Ogerpon ex (Wellspring Mask) | Mask of Change (SV6) | Twilight Masquerade | Water | Secondary collector focus |
| Ogerpon ex (Hearthflame Mask) | Mask of Change (SV6) | Twilight Masquerade | Fire | Secondary collector focus |
| Ogerpon ex (Cornerstone Mask) | Mask of Change (SV6) | Twilight Masquerade | Rock | Secondary collector focus |
| Sinistcha ex | Mask of Change (SV6) | Twilight Masquerade | Grass | Kitakami DLC Pokémon |
| Pecharunt ex | Mask of Change (SV6) | Twilight Masquerade | Poison | Mythical from the epilogue |
| Carmine (trainer) | Mask of Change (SV6) | Twilight Masquerade | Supporter | High-demand SIR |
| Kieran (trainer) | Mask of Change (SV6) | Twilight Masquerade | Supporter | High-demand SIR |
The Carmine and Kieran Special Illustration Rares were among the most sought trainer cards in the Scarlet and Violet era at the time of the set's release. For exact card numbers on every entry, use the Limitless SV6 index and filter by EN print location.
JP vs EN booster box comparison
Price per pack
At observed secondary prices in October 2026, Japanese Mask of Change booster boxes are listed at $104.99 to $168.00 USD across independent shops. At 30 packs per box, that puts the per-pack cost at roughly $3.50 to $5.60 USD. An English Twilight Masquerade booster box runs approximately $190 USD for 36 packs, or around $5.28 per pack at that price point. The JP box offers a comparable per-pack entry cost, though each pack yields only 5 cards versus 10 in the EN version.
Play legality
Japanese cards are not tournament-legal at most English-language official events. If competitive play is the goal, buy English. For collection and display, graders including PSA, BGS, and CGC accept Japanese cards from any era on equal terms.
Card back and presentation
Japanese Scarlet and Violet cards use the same black card back across all JP SV-era sets. The back is distinct from English SV cards but fully playable in casual games. For collectors framing or displaying cards, the JP alternate-art prints of the Ogerpon ex forms and the Carmine SIR are often preferred for their slightly different ink rendering.
| Format | Packs | Cards per pack | Cards per box | Observed price (Oct 2026) |
|---|---|---|---|---|
| Mask of Change JP booster box | 30 | 5 | 150 | $104.99–$168.00 USD |
| Mask of Change JP single pack | 1 | 5 | 5 | $5.99–$8.00 USD |
| Twilight Masquerade EN booster box | 36 | 10 | 360 | ~$190.00 USD |
| Twilight Masquerade EN ETB (9 packs) | 9 | 10 | 90 | $99.95–$106.99 USD |
Prices observed October 2026 across independent merchant listings. Neither set carries a current retail MSRP at these secondary market prices. All prices are secondary market and vary by seller.
English Twilight Masquerade products
The English Twilight Masquerade Elite Trainer Box includes 9 booster packs, 65 card sleeves, and tournament accessories. It is the most common EN entry point for players who want both Ogerpon-themed sleeves and a pack count that makes financial sense at secondary market prices.
The EN booster box contains the full card pool from both SV5a and SV6 combined, so opening EN packs is the only way to pull Bloodmoon Ursaluna-EX and any Ogerpon ex form from a single product. Buyers who specifically want only the Mask of Change spotlight cards and are comfortable with Japanese text should consider JP SV6 directly.
Where to start if you are new to Japanese TCG imports
If this is your first Japanese import purchase, start with a single booster pack rather than a full box. At $5.99 to $8.00 USD per pack, a single SV6 pack lets you check the card stock and unboxing format before committing to 30 packs. The five-card pack is the standard across all modern Japanese TCG sets.
Our Japanese Pokémon TCG buying guide covers pack sizes, shipping considerations from international sellers, and what to check in listings before buying. For the full SV-era JP release history from SV1 onward with EN equivalents side by side, see the Japanese Pokémon TCG release schedule.
If you are specifically looking for the other half of Twilight Masquerade, the Crimson Haze (SV5a) guide covers that JP set's Bloodmoon Ursaluna ex spotlight and how it maps to the EN release. And for the broader SV6 era, the JP to EN set mapping hub lists every Japanese set from SV1 to the current releases.
Frequently asked questions
Is Mask of Change the same as Twilight Masquerade?
They share all the same cards: every JP SV6 card appears in English Twilight Masquerade. However, EN Twilight Masquerade is larger because it also includes cards from JP SV5a Crimson Haze. If you open JP SV6 specifically, you will see the full Ogerpon and Kitakami DLC card pool, but not the SV5a cards such as Bloodmoon Ursaluna-EX.
Why does Ogerpon have four ex cards in one set?
Ogerpon's game mechanic involves equipping different masks: Teal (Grass), Wellspring (Water), Hearthflame (Fire), and Cornerstone (Rock). Each mask form is a distinct Pokémon form with a different type, which is why the TCG treated each as a separate ex card. This makes SV6 unusual for having four ex cards for a single species in a single release.
How many packs are in a Japanese Mask of Change booster box?
A Japanese SV6 booster box contains 30 packs with 5 cards each, for 150 cards total. An English Twilight Masquerade booster box contains 36 packs with 10 cards each, for 360 cards total.
Are Japanese Mask of Change cards legal in English tournaments?
Japanese cards are not tournament-legal at most English-language official Pokémon events. For competitive play, use English Twilight Masquerade copies. For casual play and collection, Japanese and English SV cards share identical rules text and are fully playable in either format.
What other Japanese sets fed into English Twilight Masquerade?
SV5a Crimson Haze (March 22, 2024) is the other JP source. About 90 of its 96 cards appear in Twilight Masquerade. The full breakdown per card is on Limitless TCG's SV5a index.
Ready to browse Japanese Mask of Change packs, English Twilight Masquerade sealed product, and individual Ogerpon ex singles in one place Browse Japanese Pokémon TCG cards on DexHaul to compare listings from independent shops, all in your currency. DexHaul is independent and unofficial, not affiliated with The Pokémon Company.