# 2020 Digimon Release Special Booster Ver.1.0 #BT1-057

> Sirenmon (BT1-057) from the Digimon Card Game's 2020 Release Special Booster Ver.1.0, essential for completing the base catalog.

Canonical URL: https://supercatch.com/product/digimon-release-special-booster-ver10-sirenmon-bt1-057-u

## Identity

- **Year**: 2020
- **Manufacturer brand**: Digimon
- **Set / series**: Release Special Booster Ver.1.0
- **Card number**: #BT1-057
- **Product type**: TCG_CARD

## Description

Sirenmon (BT1-057) is a core component of the Digimon Card Game's foundational release, appearing in the Release Special Booster Ver.1.0 set from 2020. As one of the earliest cards printed for the franchise's trading card game, this entry holds significant nostalgic value for fans following the series' transition into the TCG space. Collectors often target this card to complete their initial base set runs, appreciating its role in the early ecosystem of digital and physical card collecting. The card is clearly identified by its BT1-057 catalog number, ensuring easy sorting and organization within any collection. The Release Special Booster Ver.1.0 served as the introductory product line, establishing the visual and mechanical standards for subsequent expansions. For investors and hobbyists alike, early set cards like Sirenmon represent a tangible piece of the Digimon Card Game's history. Maintaining a focus on these foundational pieces allows collectors to build a comprehensive archive of the game's evolution.

## FAQ

### What set is Sirenmon BT1-057 from?

Sirenmon BT1-057 is from the Release Special Booster Ver.1.0, the initial base set released for the Digimon Card Game in 2020.

### Why is the BT1-057 card number important?

The BT1-057 identifier is crucial for accurate sorting and completionist collectors, as it uniquely places Sirenmon within the first expansion's catalog.

### Is the Release Special Booster Ver.1.0 still relevant?

Yes, the 2020 Release Special Booster Ver.1.0 remains a focal point for collectors documenting the early history and design language of the Digimon Card Game.

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- [llms.txt](https://supercatch.com/llms.txt) — site-level concise index.
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Last verified: 2025-11-29.