Pokémon TCG · Challenge from the Darkness · Japanese · #091
Rocket's Secret Experiment #091 (Japanese) price
Challenge from the Darkness091Market prices
90-day range · TCGplayer
Rocket's Secret Experiment (#091, Uncommon) is a card from the Japanese Pokémon set Challenge from the Darkness. Near Mint, it has a market price of about $4.07 on TCGplayer and €5.92 on Cardmarket (updated October 15, 2026). Over the last 7 days, its TCGplayer market price fell 2.9% and the Cardmarket price trend rose 13.8%. Over the last 30 days, its TCGplayer market price fell 2.9% and the Cardmarket price trend rose 31.6%. Over the last 90 days, its TCGplayer market price fell 17.4% and the Cardmarket price trend fell 9.1%. Its 90-day TCGplayer market price range is $4.07 to $5.11. Its 90-day Cardmarket price trend range is €4.50 to €6.51. Graded, a PSA 10 is worth about $156.00. Among the 32 Uncommon cards of Challenge from the Darkness, it is the ninth most valuable. Converted to dollars, its Cardmarket price is 63.0% higher than its TCGplayer price.
Rocket's Secret Experiment #091 prices by finish
| Finish | TCGplayer | Cardmarket |
|---|---|---|
| Normal | $4.07 | €5.92 |
Near Mint prices: TCGplayer market price, Cardmarket price trend, updated October 15, 2026.
Price changes by finish
| Finish | Price | 7 days | 30 days | 90 days | 90-day range |
|---|---|---|---|---|---|
| Normal | TCGplayer market price | −2.9% | −2.9% | −17.4% | $4.07 – $5.11 |
| Normal | Cardmarket price trend | +13.8% | +31.6% | −9.1% | €4.50 – €6.51 |
Change of the same Near Mint price (same market, same finish) against 7, 30 and 90 days ago; range: its lowest and highest daily value over the last 90 days. Only where the price history supports a figure; lowest listings have none.
Follow your own copies, graded or raw, and what they are worth in Sparkl.
Rocket's Secret Experiment #091 graded prices
| Grade | PSA | BGS | CGC | SGC |
|---|---|---|---|---|
| 10 | $156.00 | $203.00 | $11.50 | $94.00 |
US dollars, from recent graded sales and graded market prices.
Rocket's Secret Experiment #091 price history
About this card
- Number
- 091
- Rarity
- Uncommon
- Finishes
- Normal
- Rank in its rarity
- 9th of 32 Uncommon cards
- Against its rarity’s median
- 1.8× the median ($2.33)
- Cardmarket vs TCGplayer
- +63.0% after conversion ($1.1208 per euro)
- Released
- June 25, 1998
- Print language
- Japanese
How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.
You are viewing the free public price page
See everything about Rocket's Secret Experiment in Sparkl
- Its price history chart, every finish and graded prices
- The Challenge from the Darkness master set, card by card, with every price
- Scan your cards with your iPhone: set, number and finish are filled in for you
Free on iPhone and the web
Most valuable Challenge from the Darkness cards
- Sabrina's Gengar#94 · Holo Rare · $788.00
- Blaine's Charizard#6 · Holo Rare · $200.96
- Koga's Ninja Trick#083 · Uncommon · $122.79
- Rocket's Mewtwo#150 · Holo Rare · $113.51
- Imakuni?'s Doduo#074 · Super Rare · $83.17
- Erika's Venusaur#3 · Holo Rare · $68.91
The 10 most valuable · See all 98 cards in Challenge from the Darkness
Next to Rocket's Secret Experiment #091 in Challenge from the Darkness
- Sabrina's Psychic Control#088 · Uncommon · $6.82
- Koga's Muk#89 · Rare · $2.39
- Minion of Team Rocket#089 · Uncommon · $2.25
- Sabrina's Gastly#92 · Uncommon · $6.22
- Blaine#093 · Rare · $3.14
- Sabrina's Haunter#93 · Uncommon · $10.80