What is the resale value of an ungraded Onix [Trainer Deck A] #56?

An ungraded copy of Onix [Trainer Deck A] #56 from the Pokémon Base Set is valued at $260.

How much does a graded version of this card sell for?

A Grade 9 version of Onix [Trainer Deck A] #56 is currently listed for $44.

Which condition offers the best value for this Pokémon card?

The Grade 9 condition offers a lower entry price at $44 compared to the ungraded price of $260.

Onix [Trainer Deck A] #56 — Pokémon Base Set Card Value

Pokémon Base Set

What the Onix [Trainer Deck A] #56 card from Pokémon Base Set is worth — ungraded and graded (PSA 10).

Onix [Trainer Deck A] #56 value — Ungraded $260 · Grade 9 $44. Prices updated July 2026.

Set · Pokémon Base SetGame · Pokémon

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Value by grade

$260

Ungraded

+-83%

$44

Grade 9

Real sold prices per grade — the Grade 9 premium on this card is 1.0× 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 Onix #56, grab the Standard version for only $2. The premium versions offer specific collecting value: Trainer Deck A is the most valuable at $260, while 1st Edition and Shadowless offer slight scarcity premiums over the $2 Standard. If you are a casual collector, save your money; serious investors should pay for the Trainer Deck A for maximum return.

VersionUsedNewBuy

Trainer Deck A— this pageOnix [Trainer Deck A] #56 — Pokémon Base Set Card Value$260.18—eBay ↗

1st EditionOnix [1st Edition] #56 — Pokémon Base Set Card Value$20.64$762.49eBay ↗

ShadowlessOnix [Shadowless] #56 — Pokémon Base Set Card Value$2.48$179.34eBay ↗

1999-2000Onix [1999-2000] #56 — Pokémon Base Set Card Value$2.32$155.5eBay ↗

StandardOnix #56 — Pokémon Base Set Card Value$1.94$126.51eBay ↗

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Price data verified against · 1

PriceCharting — Onix [Trainer Deck A] #56 (Pokémon Base Set)$260.18

Item details

Brand: Pokémon
Set: Pokémon Base Set
Game: Pokémon
Card number: #56

Onix [Trainer Deck A] #56 (Pokémon Base Set) card value

An ungraded Onix [Trainer Deck A] #56 from Pokémon Base Set averages around $260. A Grade 9 copy runs about $44, and a PSA 10 gem-mint commands null.

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	$260	eBay sold comps
Grade 9	$44	eBay sold comps

Frequently asked questions

What is the resale value of an ungraded Onix [Trainer Deck A] #56?: An ungraded copy of Onix [Trainer Deck A] #56 from the Pokémon Base Set is valued at $260.
How much does a graded version of this card sell for?: A Grade 9 version of Onix [Trainer Deck A] #56 is currently listed for $44.
Which condition offers the best value for this Pokémon card?: The Grade 9 condition offers a lower entry price at $44 compared to the ungraded price of $260.