ULST #50
Mary O'Kill
Legendary Creature · Human Villain
TCGplayer market · UST #138 nonfoil
$0.18
- 1-year range
- 30 days
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Buy UST #138 nonfoil
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Mary O'Kill Price Summary
Mary O'Kill Price History
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Reprints in this period
Mary O'Kill price history chart, default range 3 months. currently $0.18.
Where to Buy and Sell Mary O'Kill
Every market we track for UST #138 nonfoil on one line. The gray band is what you give up selling to a store instead of buying at market.
Mary O'Kill in Sealed Products
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Mary O'Kill Printings & Prices
Mary O'Kill has 2 tracked printings across 2 sets, in foil and nonfoil finishes.
UST #138
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Sell Mary O'Kill: Buylist Offers
| Buyer | Printing | Finish | Cash offer | Market | Spread to market |
|---|---|---|---|---|---|
| Card Kingdom | UST #138 | Foil | |||
| Card Kingdom | UST #138 | Nonfoil | |||
| Card Kingdom | ULST #50 | Foil |
Mary O'Kill Rules Text & Legality
Mary O'Kill
{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.)
Mary O'Kill is not legal in any of the major constructed formats.
- AlchemyNot legal
- BrawlNot legal
- CommanderNot legal
- Competitive BrawlNot legal
- Duel CommanderNot legal
- Future StandardNot legal
- GladiatorNot legal
- HistoricNot legal
- LegacyNot legal
- ModernNot legal
- OathbreakerNot legal
- Old SchoolNot legal
- PauperNot legal
- Pauper CommanderNot legal
- Penny DreadfulNot legal
- PioneerNot legal
- PreDHNot legal
- PremodernNot legal
- StandardNot legal
- Standard BrawlNot legal
- TimelessNot legal
- VintageNot legal
Mary O'Kill Rulings
- Jan 19, 2018
For all intents and purposes, the exchanged card is taking the place of the original card. Whatever its doing, the state it’s in, whatever’s attached to it—all of it stays the same. It’s as if Mary O’Kill or one of the Killbots pulls off a mask to reveal they were actually the other one all along. Diabolical!
- Jan 19, 2018
Killbot is a creature type. There are several Killbots in the Unstable set.
- Jan 19, 2018
You can activate Mary O’Kill’s ability if it is in your hand.
Reprints & Reprint Risk
Mary O'Kill has been reprinted 3 times.
- Dec 8, 2017UnstableUST #138
- Dec 8, 2017Unstable · foilUST #138
- Oct 7, 2022The List (Unfinity Foil Edition) · foilULST #50
Mary O'Kill FAQ
How much is Mary O'Kill worth?
Mary O'Kill is worth about $0.18 for its cheapest playable printing as of Nov 8, 2026.
Is Mary O'Kill legal in Commander?
No. Mary O'Kill is not legal in any of the major constructed formats (Standard, Pioneer, Modern, Legacy, Commander and Pauper).
Has Mary O'Kill been reprinted?
Yes. Mary O'Kill has been reprinted 3 times, with 2 printings tracked on The Index.
Why is Mary O'Kill cheap?
Mary O'Kill trades at about $0.18; 3 reprints keep supply plentiful.