What is the starting price for an ungraded Slugma #20?

Ungraded copies of Slugma #20 from the Japanese Mysterious Mountains set are currently valued around $6.

How much is a PSA 10 graded Slugma #20 worth?

A PSA 10 graded copy of Slugma #20 is valued at $200.

Which condition offers the best return on investment for this card?

For maximum value, a PSA 10 grade offers the highest return, while ungraded copies are the most accessible entry point.

Slugma #20 — Pokémon Japanese Mysterious Mountains Card Value

Name: Slugma #20 — Pokémon Japanese Mysterious Mountains Card Value
Brand: Pokémon

Pokémon Japanese Mysterious Mountains

What the Slugma #20 card from Pokémon Japanese Mysterious Mountains is worth — ungraded and graded (PSA 10).

Slugma #20 value — Ungraded $6 · Grade 9 $70 · PSA 10 $200. Prices updated July 2026.

Set · Pokémon Japanese Mysterious MountainsGame · Pokémon

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Value by grade

Ungraded

11.7×

$70

Grade 9

33.3×

$200

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 33.3× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

For the cheapest way to own Slugma #20, buy the Standard version at $6. The 1st Edition version, priced at $5, offers no inherent collectible advantage over the Standard in this case, as the price is lower. Therefore, if your goal is simply acquisition, the 1st Edition is the better deal. If you are prioritizing investment or rarity, neither version currently justifies a premium over the other based on these prices.

VersionUsedNewBuy

Standard— this pageSlugma #20 — Pokémon Japanese Mysterious Mountains Card Value$6.12$199.99eBay ↗

1st EditionSlugma [1st Edition] #20 — Pokémon Japanese Mysterious Mountains Card Value$5.14$120eBay ↗

JunkPal AI· resale insightanalyzing sold comps…

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Price data verified against · 1

PriceCharting — Slugma #20 (Pokémon Japanese Mysterious Mountains)$6.12

Item details

Brand: Pokémon
Set: Pokémon Japanese Mysterious Mountains
Game: Pokémon

Slugma #20 (Pokémon Japanese Mysterious Mountains) card value

An ungraded Slugma #20 from Pokémon Japanese Mysterious Mountains averages around $6. A Grade 9 copy runs about $70, and a PSA 10 gem-mint commands $200.

What drives the price

Centering, corners, edges, and surface decide a card's grade — and the grade decides the price. The jump from raw to PSA 10 can be 5–20×, so condition is everything. Holos, first editions, and shadowless prints carry the biggest premiums.

Price guide

Sold values by grade vs. what sellers ask today

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Condition	Value	Based on
Ungraded	$6	eBay sold comps
Grade 9	$70	eBay sold comps
PSA 10	$200	eBay sold comps

Frequently asked questions

What is the starting price for an ungraded Slugma #20?: Ungraded copies of Slugma #20 from the Japanese Mysterious Mountains set are currently valued around $6.
How much is a PSA 10 graded Slugma #20 worth?: A PSA 10 graded copy of Slugma #20 is valued at $200.
Which condition offers the best return on investment for this card?: For maximum value, a PSA 10 grade offers the highest return, while ungraded copies are the most accessible entry point.