Two Pokemon cards can share the exact same number and the exact same artwork, and still sell at very different prices. The only difference is which shape is etched into the foil, and that shape is what defines Master Ball mirror Pokemon cards.
The Master Ball mirror is a parallel treatment found on just two Japanese sets, and it’s easy to confuse with its much more common cousin, the Monster Ball mirror — especially since both patterns only reveal themselves when the card is tilted under light.
Master Ball mirror is documented in two JP sets — 151 (SV2a) and Terastal Fest ex (SV8a) — and only on C/U/R cards.
- Set reference: the Terastal Fest ex card list.
USD figures convert at ¥154/USD, approximate.
What Is a Master Ball Mirror?
A Master Ball mirror (マスターボールミラー) is a rare parallel foil where the Master Ball shape — the rounder-eared silhouette with an “M” mark — is etched repeatedly into the card’s holo pattern. It’s a different animal from the Monster Ball mirror (モンスターボールミラー), the far more common parallel in the same sets that carries a plain Poke Ball outline instead.
Both are foil treatments, not separate print runs of the whole card — the base artwork, name, and card number stay identical between a Monster Ball mirror copy and its Master Ball mirror sibling. What changes is only the pattern etched into the foil, and that single difference is what separates a low-four-figure-yen card from one worth several times more.
One rule matters more than any other when you’re checking a card: the Master Ball mirror treatment only applies to C, U, and R rarity cards. SR and anything above it never gets a Master Ball mirror version, no matter how chase-worthy the card is. (Source: 攻略大百科.)
Where It Exists: Two Sets, Two Rates
As of August 12, 2026, Master Ball mirror is documented in exactly two Japanese sets:
| Set | Code | JP release | Master Ball mirror rate (community, unofficial) | Eligible pool |
|---|---|---|---|---|
| ポケモンカード151 (151) | SV2a | 2023-06-16 | ~1 per box (initial print); later reprints trend toward ~1 per 2 boxes | ~150 species (community counts differ, 150–153) |
| テラスタルフェスex (Terastal Fest ex) | SV8a | 2024-12-06 | ~1 per 2 boxes | 101 species |
SV2a 151 was the set that started it — the first appearance of Master Ball mirror in a Japanese set. SV8a Terastal Fest ex followed roughly eighteen months later with a tighter pull rate but a smaller eligible pool. In the same sets, the Monster Ball mirror is the volume parallel: Terastal Fest ex alone has 144 species eligible for it — community estimates put it at ~2–3 per box, and one 2,000-box opening survey reports ~3 mirror cards per box in total.
These rates are community opening-data estimates, not official pull rates, and reprint waves can shift the numbers without notice.
Master Ball vs Monster Ball: How to Tell Them Apart
Both patterns are invisible under flat light and only appear when you tilt the card. The tell is the shape repeating across the foil: a rounder-eared silhouette with an “M” mark means Master Ball mirror; a plain Poke Ball outline, with no “M”, means Monster Ball mirror. Card number and artwork give you no clue on their own — two cards with the exact same number can carry either pattern.
Standard card scans show artwork only, not the foil pattern. The foil only reveals itself in hand, under a light source, tilted. Don’t judge a Master Ball mirror listing off a flat photo alone.
Espeon, Flareon, Jolteon, Vaporeon and Umbreon are Master Ball mirror eligible prints (the Umbreon scan is its Monster Ball sibling); a scan confirms card identity, not foil pattern:
Worth noting: Espeon and Umbreon are Gen 2 evolutions, so they can’t appear in 151 (a Kanto-only set) — their Master Ball mirror prints exist only in Terastal Fest ex. The Gen 1 Eeveelutions — Vaporeon, Jolteon, Flareon — are the ones that can carry a 151 Master Ball mirror instead. If you’re trying to identify which set a mirror Eeveelution came from, which Pokemon it is answers that question before you even check the set code.
Master Ball Mirror PSA 10 Singles and Prices
Both singles are graded PSA 10:
| Card | Set | Card # | Parallel | Price |
|---|---|---|---|---|
| Espeon R | Terastal Fest ex (SV8a) | 062/187 | Master Ball mirror | ¥14,640 (~$95) |
| Magikarp C | 151 (SV2a) | 129/165 | Master Ball mirror | ¥29,736 (~$193) |
Which Master Ball Mirror Fits Your Budget
Between the PSA 10 Espeon R from Terastal Fest ex and the PSA 10 Magikarp C from 151, the Espeon is the lower-priced Master Ball mirror and the Magikarp the higher-priced one.
Master Ball Mirror vs the English “Master Ball Pattern”
English collectors may recognize this concept from Prismatic Evolutions, released January 17, 2025, which features three parallel foil variants — regular, Poke Ball pattern, and Master Ball pattern — with C/U/R Pokemon eligible for all three and C/U Trainers getting regular and Poke Ball only. That set draws heavily from the JP Terastal Fest ex and Generations Start Decks card pool, which is why the naming and mechanic will look familiar if you’ve seen both. (Source: Bulbapedia.)
If you’re buying specifically for the Japanese Master Ball mirror, the two JP sets are the confirmed source; treat any English-set equivalence as a separate collecting lane rather than the same card in another language.
Where to Buy Master Ball Mirror Pokemon Cards from Japan
We ship graded PSA 10 singles and sealed Japanese product worldwide from Tokyo with tracked delivery. For box-opening odds on the sets these come from rather than singles pricing, our Terastal Fest ex pull rates guide covers the box-EV side in depth.
Browse the full graded lineup on our PSA 10 singles collection. The PSA 10 Umbreon Master Ball mirror single was listed at ¥40,250 (~$261) on October 28, 2026. Requests for a specific product go through Quick Order.
Frequently Asked Questions
What is a Master Ball mirror Pokemon card?
A rare parallel foil where the Master Ball shape — a rounder-eared silhouette with an “M” mark — is etched into the card’s holo pattern, visible when the card is tilted. It only appears on C, U, and R rarity cards; SR and above never get it.
What’s the difference between Master Ball mirror and Monster Ball mirror?
Both are foil parallels on the same card number and artwork. Master Ball mirror shows the Master Ball shape with an “M” mark; Monster Ball mirror shows a plain Poke Ball outline with no “M”. Monster Ball mirror is the far more common of the two.
Which sets have Master Ball mirror cards?
Master Ball mirror is documented in two Japanese sets: 151 (SV2a) and Terastal Fest ex (SV8a). It first appeared with SV2a 151.
How rare is a Master Ball mirror pull?
Community opening-data estimates (not official) put it at roughly one per box or less, depending on the set and print run. These are unofficial community counts, not published odds.
Is the English Prismatic Evolutions “Master Ball pattern” the same as the Japanese Master Ball mirror?
They’re the same naming concept and Prismatic Evolutions draws largely from the Japanese Terastal Fest ex card pool. Treat them as related but separate collecting lanes.
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