Unown [I]
Unown [I] #37/123 (Mysterious Treasures) is worth about $10.38 today for a Reverse Holofoil copy, the TCGplayer market price for any condition as of 2026-10-27, up 15% over 30 days. Non-holo copies are $2.60.
This card has 2 printings (TCGplayer market, 2026-10-27): Reverse Holofoil $10.38 (this page), Normal $2.60 (on this page's chart).
price trend and the high since we began tracking: more ↓less ↑
Unown [I] #37/123 is trending up: $10.38 today, up 15% in 30 days and 14% below its high of $12.03 (2026-10-07), the highest since we began tracking (2024-02-08), and 9.4x its low of $1.10 (2024-05-09). TCGplayer market price as of 2026-10-27, tracked daily since 2024-02-08. chart →
Price data for your app or store: API and daily history since 2024 · CSV download
WORTH GRADING?
WHERE TO BUY AND SELL
Reverse Holofoil · eBay scanned Oct 7show the work →
| TCGplayer market | $10.38 | verify ↗ |
| TCGplayer lowest ask | $4.54 | |
| eBay delivered floor (scanned 20d ago) | $6.50 | the listing ↗ |
GAME DATA[ + ] SHOW[ × ] HIDE
- CARD TYPE
- Psychic
- STAGE
- Basic
- HP
- 50
- ATTACK 1
- [1] Hidden Power Choose an Energy card attached to the Defending Pokémon and put it face down. Treat that card as a Special Energy card that provides 1 Colorless Energy and doesn't have any effect other than providing Energy. Put that card face up at the end of your opponent's next turn.
- WEAKNESS
- P+10
- RETREAT COST
- 1
- CARD TEXT
- Poké-POWER — ITEM Once during your turn (before your attack), if you have Unown I, Unown T, Unown E, and Unown M on your Bench, you may search your deck for a Trainer card, show it to your opponent, and put it into your hand. Shuffle your deck afterward. You can't use more than 1 ITEM Poké-Power each turn.
MORE BY DAISUKE ITO
FULL CATALOG →
MORE FROM MYSTERIOUS TREASURES
FULL SET →
PRICE FAQ
Why does Unown #37/123 have two prices?
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Unown #37/123 was printed 2 ways and each one sells separately: Reverse Holofoil $10.38; Normal $2.60 (TCGplayer market, 2026-10-27). Check the set, the rarity mark and any parallel foil, manga art or edition stamp on your copy to know which price is yours; TickerMint prices every printing on its own page.
What would a card shop pay for Unown [I]?
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Shops and show vendors commonly offer about 70% of market in cash and 80% in store credit. At today's $10.38 market price that is roughly $7.27 cash or $8.30 trade for a near-mint copy. Selling it yourself on TCGplayer or eBay nets more after fees; see the seller-net answer below.
What is Unown [I] (Mysterious Treasures) worth today?
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Unown [I] [Reverse Holofoil] has a TCGplayer market price of $10.38 as of 2026-10-27. Non-holo copies are $2.60.
Is Unown [I] going up or down in price?
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Unown [I] #37/123 is trending up: $10.38 today, up 15% in 30 days and 14% below its high of $12.03 (2026-10-07), the highest since we began tracking (2024-02-08), and 9.4x its low of $1.10 (2024-05-09). TCGplayer market price as of 2026-10-27, tracked daily since 2024-02-08. Other windows: up 0.0% over 7 days, up 18.0% over 90 days, up 212.7% over a year. A 30-day rise this size usually follows a supply squeeze or a new format result; check the eBay book depth before buying in.
What is the all-time high price for Unown [I]?
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TickerMint began tracking Pokemon prices on 2024-02-08, after Unown [I] came out, so these are the highest and lowest prices since we began tracking (2024-02-08), not all-time records. In TickerMint's daily data (since February 2024), the TCGplayer market price for Unown [I] [Reverse Holofoil] (all conditions) peaked at $12.03 (2026-10-07) and bottomed at $1.10 (2024-05-09).
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