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Brock's Golem #20 Pokémon card from Gym Heroes

Brock's Golem 20/132

Gym Heroes

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Brock's Golem #20 from Gym Heroes currently trades at $10.55 raw, with PSA 10 copies reaching $256.51 — a 24.3x grade premium.
Current Prices (USD)
Ungraded
$10.55
PSA 7
$19.64
PSA 8
$28.00
PSA 9
$28.61
PSA 10
$256.51
ACE 10
—
BGS 10 Black
$1,665.00
CGC 10 Pristine
$40.00
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Raw Price Trend
7d
+0.0%
30d
—
90d
+0.6%
180d
-4.1%
1y
+39.9%
2y
+32.7%
5y
+114.9%

Quick price facts

Brock's Golem 20/132 from Gym Heroes has a current raw market value of $10.55.

Current raw value
$10.55
PSA 9 value
$28.61
PSA 10 value
$257
PSA 10 premium vs raw
24.3× raw
View all cards from Gym Heroes →
Collector Intel
24.3x
Raw → PSA 10
High-risk grade
2.7x
Raw → PSA 9
Grade multiplier
Steady
Price Stability
0.0% swing this week

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

Grading Calculator

Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.

⚠️ High-variance grade. PSA 10 is 24x the raw price. The expected value accounts for the realistic probability.
$11
Buy Raw
~$25
Grading Fee
PSA Standard
$257
PSA 10 Value
+$221
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$292.7x raw
PSA 10$25724.3x raw

Frequently asked questions

How much is Brock's Golem #20 from Gym Heroes worth?+
Brock's Golem #20 from Gym Heroes is currently worth Raw: $10.55, PSA 9: $28.61, PSA 10: $257 based on recent sold listings. Prices update daily from real eBay sales.
Is Brock's Golem #20 worth grading?+
The PSA 10 price of $257 is 24.3× the raw price of $10.55. After a ~$25 grading fee, a PSA 10 result would net approximately $246 — assuming the card grades a 10.
Where do PokePrices Brock's Golem #20 prices come from?+
Prices are tracked nightly from real sold listings on PriceCharting (raw, PSA 9 and PSA 10). PSA population data is sourced from PSA's public reports. We do not use asking prices — only confirmed sales.

Recent verified sales

Find this card on eBay →Affiliate · we may earn commission
  • 3 Aug 2026Graded
    ebaycompleted-auctions-cibunknown
    $14.00
  • 2 Aug 2026Raw
    ebaycompleted-auctions-usedunknown
    $10.50
  • 1 Aug 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $34.75
  • 25 Jul 2026Raw
    ebaycompleted-auctions-usedunknown
    $3.99
  • 25 Jul 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $17.99