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Mewtwo EX #42 Pokémon card from Japanese Best of XY
Japanese

Mewtwo EX 42/171

Best of XY· Language: Japanese

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Mewtwo EX #42 from Japanese Best of XY currently trades at $14.30 raw, with PSA 10 copies reaching $137.61: a 9.6x grade premium. The card has moved down 15.8% over the past 30 days and down 4.2% over 90 days, suggesting continued softness.
Current Prices (USD)
Ungraded
$14.30
PSA 7
$9.05
PSA 8
$11.00
PSA 9
$42.31
PSA 10
$137.61
ACE 10
—
BGS 10 Black
$895.00
CGC 10 Pristine
$115.39
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Raw Price Trend
7d
-2.1%
30d
-15.8%
90d
-4.2%
180d
—
1y
+34.8%
2y
+47.4%
5y
—

Quick price facts

Mewtwo EX 42/171 from Best of XY has a current raw market value of $14.30.

Current raw value
$14.30
PSA 9 value
$42.31
PSA 10 value
$138
Raw value 7d
-2.1%
Raw value 30d
-15.8%
PSA 10 premium vs raw
9.6× raw
View all cards from Best of XY →
Collector Intel
9.6x
Raw → PSA 10
Grade multiplier
3.0x
Raw → PSA 9
Grade multiplier
-15.8%
30d Price Move
Falling
Steady
Price Stability
2.1% swing this week

Calculated from price history, PSA population data, and market trends. Not financial advice.

Grading Calculator

Figures below are the gross raw-to-PSA-10 spread. PSA grading fees vary by card value and service tier — check psacard.com/services for the fee applicable to this card. Assumes a perfect PSA 10; actual outcome depends on card condition.

$14
Raw Price
$138
PSA 10 Value
+$123
Gross Premium (PSA 10)
before PSA fees
Grade Multiples vs Raw
PSA 9$423.0x raw
PSA 10$1389.6x raw

Frequently asked questions

How much is Mewtwo EX #42 from Japanese Best of XY worth?+
Mewtwo EX #42 from Japanese Best of XY currently reads Raw: $14.30, PSA 9: $42.31, PSA 10: $138 in our aggregated recent-sales price guide. The guide is rebuilt nightly from sold-sales data across the major Pokémon TCG marketplaces, never asking prices.
Is Mewtwo EX #42 worth grading?+
The PSA 10 price of $138 is 9.6× the raw price of $14.30. Grading fees vary by card value and PSA service tier — see PSA's current fee page before submitting.
Where do PokePrices Mewtwo EX #42 prices come from?+
Raw, PSA 9 and PSA 10 figures come from our aggregated recent-sales price guide, rebuilt nightly from sold-sales data across the major Pokémon TCG marketplaces. The displayed values are guide numbers, not individual listings. PSA population data is sourced directly from PSA's public population reports. Asking prices are never used; only confirmed sales activity feeds the guide.