# 2007 Pokémon Mysterious Treasures #37

> The Unown [I] Reverse Holo card from the 2007 Pokémon Mysterious Treasures expansion. This Psychic-type card offers strategic gameplay with a unique bench ability.

Canonical URL: https://supercatch.com/product/pokemon-mysterious-treasures-unown-i-37-reverse-holo

## Identity

- **Year**: 2007
- **Manufacturer brand**: Pokémon
- **Set / series**: Mysterious Treasures
- **Card number**: #37
- **Product type**: TCG_CARD

## Description

Shaped like ancient writing, this Psychic-type Pokémon invites collectors to ponder whether language or Unown came first. The reverse holo finish adds a shimmering depth to the card, enhancing its visual appeal for those who appreciate the aesthetic variety within the Mysterious Treasures expansion. Designed by Daisuke Ito, this Basic stage Pokémon brings a unique element to the Pokémon Trading Card Game. With 50 HP, Unown [I] is defined by its special ability, ITEM. Once during your turn, if you have Unown I, Unown T, Unown E, and Unown M on your bench, you may search your deck for a Trainer card. This mechanic rewards players who build around the Unown family, making it a favorite for themed collections and specific deck strategies. Its attack, Hidden Power, allows you to choose an Energy card attached to the defending Pokémon and treat it as a Special Energy card that provides Colorless Energy. This versatility makes Unown [I] a compelling piece for collectors interested in the tactical depth of the Game Freak-created universe. The card's retreat cost is just one colorless energy, allowing for flexible positioning during battles. For enthusiasts of the Pokémon TCG, this release represents a distinct era of card design from 2007. Whether you are completing a set, hunting for specific abilities, or simply admiring the artwork, this card holds a special place in the history of the franchise.

## FAQ

### What is the ability of Unown I in the Mysterious Treasures set?

Unown I has the ability ITEM, which allows you to search your deck for a Trainer card if you have Unown I, T, E, and M on your bench.

### Who illustrated the Unown I card in Mysterious Treasures?

The card was illustrated by Daisuke Ito, who brought the mysterious writing-like Pokémon to life for the 2007 expansion.

### What is the Hidden Power attack of Unown I?

Hidden Power lets you choose an Energy card on the defending Pokémon and treat it as a Special Energy card that provides Colorless Energy.

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## Companion files

- [llms.txt](https://supercatch.com/llms.txt) — site-level concise index.
- [llms-full.txt](https://supercatch.com/llms-full.txt) — site-level expanded corpus.
- [ai.txt](https://supercatch.com/ai.txt) — AI training and licensing terms.

Last verified: 2025-11-29.
