What is the starting price for an ungraded Mamoswine [Reverse Holo] #21?

Ungraded copies of the Mamoswine [Reverse Holo] #21 are listed starting at $6.

How much is a PSA 10 graded copy of this card worth?

A PSA 10 graded copy of Mamoswine [Reverse Holo] #21 is valued at $130.

Which set does the Mamoswine [Reverse Holo] #21 come from?

This specific card is from the Pokémon Stormfront set.

Mamoswine [Reverse Holo] #21 — Pokémon Stormfront Card Value

Name: Mamoswine [Reverse Holo] #21 — Pokémon Stormfront Card Value
Brand: Pokémon

Pokémon Stormfront

What the Mamoswine [Reverse Holo] #21 card from Pokémon Stormfront is worth — ungraded and graded (PSA 10).

Mamoswine [Reverse Holo] #21 value — Ungraded $6 · Grade 9 $10 · PSA 10 $130. Prices updated July 2026.

Set · Pokémon StormfrontGame · Pokémon

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Value by grade

Ungraded

+67%

$10

Grade 9

21.7×

$130

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 21.7× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

If your goal is simply to own Mamoswine #21, purchase the Standard version for $2. The Reverse Holo version at $6 offers a slight premium, typically indicating a different printing or slight scarcity, though the difference here is minor. Casual collectors should stick to the Standard version to save money, while those seeking the slight collectible bump of the Reverse Holo might justify the extra $4.

VersionUsedNewBuy

Reverse Holo— this pageMamoswine [Reverse Holo] #21 — Pokémon Stormfront Card Value$6$130.33eBay ↗

StandardMamoswine #21 — Pokémon Stormfront Card Value$2.46$85.42eBay ↗

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PriceCharting — Mamoswine [Reverse Holo] #21 (Pokémon Stormfront)$6

Item details

Brand: Pokémon
Set: Pokémon Stormfront
Game: Pokémon

Mamoswine [Reverse Holo] #21 (Pokémon Stormfront) card value

An ungraded Mamoswine [Reverse Holo] #21 from Pokémon Stormfront averages around $6. A Grade 9 copy runs about $10, and a PSA 10 gem-mint commands $130.

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	$10	eBay sold comps
PSA 10	$130	eBay sold comps

Frequently asked questions

What is the starting price for an ungraded Mamoswine [Reverse Holo] #21?: Ungraded copies of the Mamoswine [Reverse Holo] #21 are listed starting at $6.
How much is a PSA 10 graded copy of this card worth?: A PSA 10 graded copy of Mamoswine [Reverse Holo] #21 is valued at $130.
Which set does the Mamoswine [Reverse Holo] #21 come from?: This specific card is from the Pokémon Stormfront set.