# 2017 Magic: The Gathering Unstable #207

> The 2017 Magic: The Gathering Unstable expansion with the Top-Secret Tunnel card. This common artifact contraption offers unique gameplay mechanics for collectors and players.

Canonical URL: https://supercatch.com/product/magic-the-gathering-unstable-top-secret-tunnel-207

## Identity

- **Year**: 2017
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Unstable
- **Card number**: #207
- **Product type**: TCG_CARD

## Description

Among its diverse offerings is the Top-Secret Tunnel, identified as card number 207 in the Unstable set. This card functions as an Artifact — Contraption, featuring a mana value of zero, which allows it to be deployed without significant resource investment during a match. Designed by Ralph Horsley, the card adds a unique mechanical element to the game, appealing to collectors who appreciate the experimental nature of the Unstable series. The card's effect allows a creature to bypass blocking restrictions when its associated contraption is activated, providing a tactical advantage that is both simple and effective. Collectors often seek out cards from the Unstable set for their novelty and the creative liberties taken with game mechanics. The Top-Secret Tunnel stands out as a memorable piece of this expansion, representing the set's commitment to unconventional gameplay. Whether you are building a thematic collection or looking to add variety to your Magic: The Gathering library, this card offers a distinctive option. Its presence in the Unstable set highlights the innovation that defines this chapter in the game's history.

## FAQ

### What is the Top-Secret Tunnel card in Magic: The Gathering?

The Top-Secret Tunnel is a Common Artifact — Contraption card from the 2017 Unstable set. It has a mana value of zero and allows a target creature to not be blocked this turn when you crank its contraption.

### Who designed the Top-Secret Tunnel card?

The Top-Secret Tunnel card was illustrated by Ralph Horsley, who contributed artwork to the Magic: The Gathering Unstable expansion.

### What set does the Top-Secret Tunnel belong to?

The Top-Secret Tunnel is part of the Unstable set, released in 2017. It is designated as card number 207 within that set.

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Last verified: 2025-11-29.