What is the estimated value of an ungraded Slowpoke #18?

An ungraded copy of Slowpoke #18 from the Pokémon Prismatic Evolutions set is currently valued around $1.

How much is a PSA 10 graded Slowpoke #18 worth?

A PSA 10 graded Slowpoke #18 can sell for $136.

Where can I find this card?

This card is from the Pokémon Prismatic Evolutions set within the Pokémon game collection.

Slowpoke #18 — Pokémon Prismatic Evolutions Card Value

Pokémon Prismatic Evolutions

What the Slowpoke #18 card from Pokémon Prismatic Evolutions is worth — ungraded and graded (PSA 10).

Slowpoke #18 value — Ungraded $1 · Grade 9 $12 · PSA 10 $136. Prices updated July 2026.

Set · Pokémon Prismatic EvolutionsGame · Pokémon

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Value by grade

Ungraded

12.0×

$12

Grade 9

136.0×

$136

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 136.0× raw.

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Which version do you have?

For the cheapest way to own Slowpoke #18, grab the Poke Ball or Reverse version for only $1. The Master Ball at $6 offers a clear premium, likely due to a special edition or higher demand. If you are a casual collector, stick to the $1 options. Serious collectors seeking the most desirable version should invest in the Master Ball to showcase the item's perceived value.

VersionUsedNewBuy

Master BallSlowpoke [Master Ball] #18 — Pokémon Prismatic Evolutions Card Value$6$115.01eBay ↗

Poke BallSlowpoke [Poke Ball] #18 — Pokémon Prismatic Evolutions Card Value$1.28$94.95eBay ↗

ReverseSlowpoke [Reverse] #18 — Pokémon Prismatic Evolutions Card Value$1.25$34.27eBay ↗

Standard— this pageSlowpoke #18 — Pokémon Prismatic Evolutions Card Value$1.2$136.38eBay ↗

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Price data verified against · 1

PriceCharting — Slowpoke #18 (Pokémon Prismatic Evolutions)$1.2

Item details

Brand: Pokémon
Set: Pokémon Prismatic Evolutions
Game: Pokémon

Slowpoke #18 (Pokémon Prismatic Evolutions) card value

An ungraded Slowpoke #18 from Pokémon Prismatic Evolutions averages around $1. A Grade 9 copy runs about $12, and a PSA 10 gem-mint commands $136.

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	$1	eBay sold comps
Grade 9	$12	eBay sold comps
PSA 10	$136	eBay sold comps

Frequently asked questions

What is the estimated value of an ungraded Slowpoke #18?: An ungraded copy of Slowpoke #18 from the Pokémon Prismatic Evolutions set is currently valued around $1.
How much is a PSA 10 graded Slowpoke #18 worth?: A PSA 10 graded Slowpoke #18 can sell for $136.
Where can I find this card?: This card is from the Pokémon Prismatic Evolutions set within the Pokémon game collection.