Grade Matrix
PSA
PSA 6
-
PSA 7
$7
PSA 8
$9
PSA 9
$10
PSA 10
$116
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$31
CGC P10
-
Availability
Availabilityi
1/10G: —
Graded: insufficient data · Sales per year: ~19 sales/yr · Graded copies: 8
TCGplayer Price History
Reverse HolofoilProduct 87139Fetched Sep 9, 3:36 AM
TCGplayer market
$5.34
Latest avg sale
$3.17
Units sold
39
Card Value FAQ
How much is Mamoswine (Stormfront #21) worth?
GemDelta shows Mamoswine (Stormfront #21) at $5.56 market price (TCGplayer market). Its Delta multiple is 24.1x.
How much is a PSA 10 Mamoswine (Stormfront #21) worth?
A PSA 10 Mamoswine (Stormfront #21) is currently shown at $116. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Mamoswine (Stormfront #21) worth grading?
GemDelta records a 0.00% gem rate for Mamoswine (Stormfront #21), with 0 PSA 10 copies out of 8 total PSA grades and a 24.1x Delta. That describes the grading profile; it is not financial advice.
What is the Reverse Holo version of Mamoswine (Stormfront #21) worth?
The Reverse Holo version of Mamoswine (Stormfront #21) is shown at $5.56 market price. That value is for this stored card variant, not the base printing.