What is the starting resale value for an ungraded Bastiodon #21?

An ungraded Bastiodon #21 from the Mysterious Treasures set starts at a resale value of $4.

How much is a PSA 10 graded copy worth?

A PSA 10 graded copy of Bastiodon #21 is currently valued at $111.

Is the value difference between ungraded and graded significant?

Yes, the difference is substantial, with a PSA 10 selling for $111 compared to an ungraded copy at $4.

Bastiodon #21 — Pokémon Mysterious Treasures Card Value

Name: Bastiodon #21 — Pokémon Mysterious Treasures Card Value
Brand: Pokémon

Pokémon Mysterious Treasures

What the Bastiodon #21 card from Pokémon Mysterious Treasures is worth — ungraded and graded (PSA 10).

Bastiodon #21 value — Ungraded $4 · Grade 9 $17 · PSA 10 $111. Prices updated July 2026.

Set · Pokémon Mysterious TreasuresGame · Pokémon

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Value by grade

Ungraded

4.3×

$17

Grade 9

27.8×

$111

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 27.8× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

For the absolute cheapest way to own Bastiodon #21, grab the Standard version for $4. The Reverse Holo version at $2 offers no significant upgrade in edition or scarcity over the Standard. Therefore, if your goal is simply collection completion on a budget, buy the Reverse Holo. However, if you value the standard printing, the Standard version is the one to secure.

VersionUsedNewBuy

Standard— this pageBastiodon #21 — Pokémon Mysterious Treasures Card Value$3.99$110.75eBay ↗

Reverse HoloBastiodon [Reverse Holo] #21 — Pokémon Mysterious Treasures Card Value$2$74.25eBay ↗

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Price data verified against · 1

PriceCharting — Bastiodon #21 (Pokémon Mysterious Treasures)$3.99

Item details

Brand: Pokémon
Set: Pokémon Mysterious Treasures
Game: Pokémon

Bastiodon #21 (Pokémon Mysterious Treasures) card value

An ungraded Bastiodon #21 from Pokémon Mysterious Treasures averages around $4. A Grade 9 copy runs about $17, and a PSA 10 gem-mint commands $111.

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	$4	eBay sold comps
Grade 9	$17	eBay sold comps
PSA 10	$111	eBay sold comps

Frequently asked questions

What is the starting resale value for an ungraded Bastiodon #21?: An ungraded Bastiodon #21 from the Mysterious Treasures set starts at a resale value of $4.
How much is a PSA 10 graded copy worth?: A PSA 10 graded copy of Bastiodon #21 is currently valued at $111.
Is the value difference between ungraded and graded significant?: Yes, the difference is substantial, with a PSA 10 selling for $111 compared to an ungraded copy at $4.