# Unown I #37/123 — Mysterious Treasures

## Summary

Unown I is one letter of a four-card word puzzle, spelling out ITEM, and a Rare slot meant you had to pull or trade for the whole set to make the Poké-Power work. Unown has a devoted Gen II following, and Daisuke Ito's long run on Pokémon cards adds collector goodwill. The modelled guide sits at $2.60, up 9% over 30 days on 6 copies traded, with 152 days of inventory on the board; a PSA 10 guides at $71, 27 times raw, but PSA does not split this card’s population by finish, so no gem rate can be read for it.

## Identity

| Field | Value |
| --- | --- |
| Set | Mysterious Treasures |
| Number | 37/123 |
| Rarity | Rare |
| Era | DP |
| Illustrator | Daisuke Ito |
| Release date | 2007-08-01 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Basic |
| HP | 50 |
| Types | Psychic |
| Ability: 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. |
| Attack: Hidden Power | cost Colorless — Choose an Energy card attached to the Defending Pokémon and put it face down. Treat that card as a Special Energy card that provides 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 | Psychic +10 |
| Retreat | 1 |
| Legal | Standard no · Expanded no |
| Pokédex entry | [Unown #201](https://cardboardalpha.com/pokemon/pokedex/unown) |
| Finishes | Normal, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$2.60** (ITEM_MEDIAN; modelled guide price) — as of 2026-10-22T22:54:43.176Z
- Headline basis: MODELLED_GUIDE — The venue’s published daily market guide, which the venue itself declares MODELLED. Nothing is confirmed to have traded at it, no copy is listed at it, and it is not our estimate — it is theirs.
- 24h change: n/a · 7d change: n/a — as of 2026-10-22T22:54:43.176Z
- Floor delivered ask: $2.07 — as of 2026-10-22T22:54:43.176Z
- Quant score: 60/100, regime ILLIQUID_UNKNOWN — as of 2026-10-22T22:54:43.176Z — 4 of 11 inputs · 38% weight · -31% confidence

## Provenance

- Catalog — observed 2007-08-01T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-02T08:16:48.701Z, confidence 90%
- Guide price (modelled) — observed 2026-10-22T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-09-28T00:07:25.568Z, confidence 90%
- Confirmed sale — observed 2026-09-25T15:54:31.130Z, confidence 85%
- Inventory count — observed 2026-09-28T00:07:25.568Z, confidence 70%
- Population census — observed 2026-09-10T00:26:28.875Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/mysterious-treasures/unown-i-37)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Adp2-37%3AEN%3ANORMAL~NM)