# 2020 Magic: The Gathering Core Set #266

> The 2021 Magic: The Gathering Core Set features this foil Swamp basic land card, numbered 266 in the M21 set.

Canonical URL: https://supercatch.com/product/magic-the-gathering-core-set-swamp-266-foil

## Identity

- **Year**: 2020
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Core Set
- **Card number**: #266
- **Product type**: TCG_CARD

## Description

The M21 core release from 2021 solidified its place in the Magic: The Gathering timeline by returning to the fundamental building blocks of gameplay. This entry, identified as card number 266, is the Swamp basic land, presented here in a foil finish. Designed by Mike Bierek, the card serves as a primary source of black mana, allowing players to cast spells of that color identity. As a basic land, it does not have a mana value and functions as a reliable foundation for any deck strategy. Collectors often seek this foil variant for its visual appeal within the M21 set. Understanding the set's context helps collectors appreciate the design choices made during this era of the game. The foil treatment adds a distinct layer of interest for those who enjoy the physical presentation of their cards. Whether building a collection or completing the M21 set, this card represents a core component of the game's history.

## FAQ

### What is the significance of the M21 set in Magic: The Gathering?

The M21 set, released in 2020, marked a return to the traditional Core Set format, focusing on the core rules and basic lands of the game. It is widely recognized for its high-quality card frame and accessibility for new and veteran players alike.

### What does the foil finish mean for this Swamp card?

The foil finish indicates that the card features a reflective, metallic surface treatment. In the context of Magic: The Gathering collecting, foil cards are often pursued by enthusiasts for their visual distinction compared to the standard non-foil versions.

### How does card number 266 relate to the M21 set?

Card number 266 identifies the specific position of this Swamp within the M21 collector database. This numbering helps collectors track their progress and verify the card's authenticity within the full set expansion.

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Last verified: 2025-11-29.