# 2017 Magic: The Gathering Unstable #165c

> The Secret Base foil card from Magic: The Gathering's 2017 Unstable expansion. This land card offers flexible mana production for themed gameplay.

Canonical URL: https://supercatch.com/product/magic-the-gathering-unstable-secret-base-165c-foil

## Identity

- **Year**: 2017
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Unstable
- **Card number**: #165c
- **Product type**: TCG_CARD

## Description

The Secret Base foil card, identified as number 165c in the Magic: The Gathering Unstable set released in 2017, provides collectors with a distinct addition to their library. As a land card, it serves a functional role in gameplay by allowing players to add either basic colorless mana or one mana of any color. This second ability is restricted to casting spells that share a watermark with the land, creating a specific strategic niche for themed decks. The foil finish adds visual appeal, making it a desirable piece for enthusiasts of the Unstable era. The 2017 release remains a notable part of Magic's history for its humorous tone and unconventional design. Collectors often seek out the foil variations of lands like Secret Base to complete their set collections or to use in casual formats. Understanding the watermark mechanic is key for those looking to build decks around this card's unique restrictions. Whether you are a long-time player or new to the hobby, this card represents a fun and strategic element of the Unstable expansion.

## FAQ

### What does the Secret Base card do in Magic: The Gathering?

Secret Base is a land card that can produce either one colorless mana or one mana of any color. The mana used to cast non-land spells must be from spells that share a watermark with this land.

### Which set is Secret Base from?

This card is from the Unstable expansion, which was released by Wizards of the Coast in 2017. It is card number 165c in that set.

### Why is the foil version of Secret Base sought after?

Collectors often seek the foil version for its visual finish and its utility in themed decks. The watermark restriction creates interesting gameplay opportunities for players who enjoy specific deck archetypes.

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Last verified: 2025-11-29.