What are the characteristics of the Mary O'Kill foil card?

The Mary O'Kill foil card is a Legendary Human Villain from the 2017 Unstable set. It has a mana value of six, a power of 5, and a toughness of 5. The foil finish provides a distinctive shimmering appearance compared to non-foil versions.

How does Mary O'Kill function in gameplay?

Mary O'Kill allows a player to swap her with a Killbot in play using a mana cost of one black or red mana. This ability works regardless of whether the creatures are tapped, attacking, or have counters, making it a versatile strategic tool.

Why is the Unstable set significant for collectors?

Collectors often seek out foil variants like Mary O'Kill for their unique finish and the set's cultural impact on the Magic: The Gathering community.

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Marketplace

Reference artwork · details may differ from this copy

About This Card

Collect the Mary O'Kill foil card (Unstable #138), a Legendary Human Villain from Magic: The Gathering's 2017 expansion. This foil variant features the character's unique abilities and distinctive finish.

Mary O'Kill

2017 • Magic: The Gathering • Unstable

2017 Magic: The Gathering Unstable

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Market Value

Raw/Ungraded Market: $0.55

Updated 5 days ago

Based on TCGplayer Market (reference)Last Updated Oct 13, 2026Check Price Guide

Market & Price History

Condition	Value	Source	Trend	Price Details
	$0.55Oct 13, 2026	Guide Estimate	-12.7%
Based on TCGplayer Market (reference) Estimate: $0.55, based on Guide Estimate. Source date not availableCaptured Oct 13, 2026 Guide Estimate: $0.55. Evidence date not available. Few comparable observations are available, so this estimate may be less reliable. Over the last 30 days, stored prices ranged from $0.55 to $0.63 across 2 capture days. Change between Sep 25, 2026 and Oct 13, 2026: -12.7%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.

$0.55Oct 13, 2026
Source
Guide Estimate
Trend
-12.7%
Price Details
Based on TCGplayer Market (reference)
Estimate: $0.55, based on Guide Estimate.
Source date not availableCaptured Oct 13, 2026
Guide Estimate: $0.55. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $0.55 to $0.63 across 2 capture days. Change between Sep 25, 2026 and Oct 13, 2026: -12.7%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.

30-day Price History

Raw / Ungraded

TCGplayer Market (reference) · Guide Estimate evidence · captured Oct 13, 2026

Each point is the last stored observation that day for this printing, condition, grader, autograph status and source. Gaps mean no observation; guide estimates and asking prices are not completed sales.

Product Overview

Description

Mary O'Kill is a Legendary Human Villain from the Magic: The Gathering Unstable expansion, released in 2017. As card number 138, this foil version brings a shimmering finish to the character's distinctive design. The card features a mana cost of five generic and one black or red mana, resulting in a mana value of six. With a power and toughness of 5/5, it serves as a formidable presence on the battlefield. Mary O'Kill’s ability allows players to swap it with a Killbot in play, offering unique strategic interactions. The foil treatment highlights the card's details, making it a standout piece for those building themed collections., enthusiasts can find high-quality examples of this card for their holdings. Whether you are completing a set or adding to a collection of foil cards, this release offers a memorable piece of Magic history.

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Product Specs

Card Details

The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.

Catalog Profile

The core identity of the card within the set.

Year

2017

Brand

Magic: The Gathering

Series

Unstable

Card Number

#138

Featured Subject

The subject, team, league, and sport context tied to this card.

Featured

Mary O'Kill

Game

Magic: The Gathering

TCG Attributes

Rarity, print treatment, and game-specific stats for this card.

Rarity

Rare

Artist

Simon Dominic

Material

Card Stock

Language

English

Finish

Foil

Mana cost

{5}{B/R}

Type

Legendary Creature — Human Villain

Power / Toughness

5 / 5

Color

B, R

Card Text

Abilities, attacks, oracle text, and flavor text printed on the card.

{1}{B/R}: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)