Quick answer
CardSpicy indexes the Tropical Tidal Wave (HGSS18) — released February 11, 2010, illustrated by Sumiyoshi Kizuki — as the #13 Japanese promo card by recorded PSA 10 value. It carries a recorded PSA 10 value of $8,383.31. It is one of 195 cards CardSpicy tracks individually in this index.
Worlds, events and city launch · No. 13 of 195 by PSA 10 value
Tropical Tidal Wave is card HGSS18, from the HGSS series of Japanese promo cards, released on February 11, 2010. It sits at No. 13 of the 195 celebration, collaboration and event cards in our index, and is catalogued as an event, championship or city release. The card face credits Sumiyoshi Kizuki as the illustrator.
Card facts
| Card | Tropical Tidal Wave |
|---|---|
| Card number | HGSS18 |
| Series | HGSS-series Japanese promo |
| Official set | Pokémon Promo |
| Released | February 11, 2010 |
| Category | Worlds, events and city launch |
| Illustrator | Sumiyoshi Kizuki |
| PSA 10 value | $8,383 |
| Rank in this index | No. 13 of 195 |
What the market says
PSA 10 copies are valued at $8,383. An ungraded copy sits at $700, so the top grade carries a 12.0× premium. A PSA 9 is at $674, so the PSA 10 is 12.4× the PSA 9. 23 individual sales are on record for this card, from $165 to $9,888, with a median of $615.
Over the 60 months of monthly market values we hold, the PSA 10 figure has moved from $8,192 (September 2021) to $8,383 — +2.3%, including +404% over the last twelve months and +53.5% over the last twenty-four.
What each grade is worth
| Ungraded | $700 |
|---|---|
| Grade 8 | $613 |
| Grade 9 | $674 |
| Grade 9.5 | $1,136 |
| PSA 10 | $8,383 |
| BGS 10 | $10,898 |
| CGC 10 | $870 |
| SGC 10 | $5,030 |
Recent recorded sales
| Date | Sale price |
|---|---|
| 2026-03-18 | $728 |
| 2026-02-07 | $165 |
| 2026-01-02 | $850 |
| 2023-10-22 | $700 |
| 2022-01-12 | $400 |
| 2025-08-31 | $615 |
| 2024-05-27 | $280 |
| 2024-05-27 | $426 |
The eight most recent sales of any grade in our record. 23 sales in total.
How many are graded
No PSA or CGC population count is published for this card. The recorded values and sales below still stand; we leave the population out rather than estimate it.
About the artist
Sumiyoshi Kizuki
Illustrator of Tropical Tidal Wave · HGSS18
Sumiyoshi Kizuki is credited as the illustrator of Tropical Tidal Wave.
Sumiyoshi Kizuki has no entry in our illustrator index yet. The cards we hold by Sumiyoshi Kizuki are listed below.
Other cards by Sumiyoshi Kizuki in this index
- Tropical Wind · $7,811
- Tropical Wind · DP25$5,500
- Tropical Wind · $4,332
- Tropical Wind · $3,565
Showing the four highest-value of the 11 cards by this illustrator in our 195-card index; the rest are on the card index.
Artist credit as printed on the card face (Illus.). The official Pokémon card database lists no entry for this card, so the card face itself is the source for the credit.
Where this card came from
Tropical Tidal Wave was released on February 11, 2010, as part of World Championship promo. It carries the card number HGSS18, from the HGSS-series Japanese promo line.
Promo cards are not sold in booster boxes. They reach collectors through a specific campaign — a store, a museum, a film, an anniversary or a championship — which is why the printed number is the only reliable identifier: the same Pokémon can appear on dozens of promo cards across the same era, and the number is what separates them.
That is also why this card appears in our celebration, collaboration and event index rather than in a set list: nothing here came out of a booster box.
Frequently asked questions
How much is Tropical Tidal Wave worth?
PSA 10 copies are valued at $8,383, against $700 for an ungraded copy and $674 for a PSA 9. That is our most recent recorded market value, not an asking price.
Who illustrated Tropical Tidal Wave?
The card face credits Sumiyoshi Kizuki. We hold 10 other cards by this illustrator in the same index. Every illustrator we can verify is listed on our illustrator page, card by card.
When was Tropical Tidal Wave released?
Tropical Tidal Wave was released on February 11, 2010. It carries the card number HGSS18, from the HGSS-series Japanese promo line.
Has Tropical Tidal Wave gone up in value?
Over the last twelve months the recorded PSA 10 value moved +404%, from $1,663 to $8,383. Over twenty-four months it moved +53.5%.
How often does Tropical Tidal Wave come up for sale?
23 individual sales are on record for this card, from $165 to $9,888, with a median of $615. Thinly traded cards can go a long time between sales.
How much does the grade change the price of Tropical Tidal Wave?
An ungraded copy is at $700, a PSA 9 at $674 and a PSA 10 at $8,383. The PSA 10 figure is 12.0 times the ungraded figure.
Sources
Sources and further reading
- Pokémon Card Game official card database — card name, printed card number, series and illustrator credit for HGSS18. This is the source for every identity detail above.
- CardSpicy — every illustrator, card by card, for the artist entry and the count of cards we hold for that illustrator.
- Recorded secondary-market sales for HGSS18 — the value, grade ladder and sale list on this page. Figures are documented results at the dates shown, updated as new sales are recorded.
- CardSpicy — card grading: how it works, for the grade scale used in the table above.
Related reading
- Celebration, collaboration and event cards — the full ranked index
- Every illustrator behind the cards we track, card by card
- Card grading: how to read a PSA, BGS or CGC label
- Why we only sell PSA 10
- The most expensive Pokémon cards, with sale dates and venues
- Pokémon set codes, decoded
Shop cards and protection
- All PSA 10 graded cards
- PSA 10 — Simplified Chinese exclusive — our highest-premium line
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- Toploader 3" x 4" rigid card holder
- All card protectors
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