Quick Answer

Mystery Key is a uncommon Artifact — Equipment from PLST (PLST) costing {1}{U}. Current price: $0.09 USD. Legal in Commander.

Mystery Key MTG card

Mystery Key

Artifact — Equipment

Card Text

When equipped creature deals combat damage to a player, sacrifice this Equipment. If you do, draw three cards. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Card Stats

uncommon CMC: 2.0 PLST PLST 🎨 Yeong-Hao Han
Equip

What kind of card is this?

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Market Prices

TCGPlayer
$0.09
Normal
Buy
Card Kingdom
$0.35
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Cardmarket
€0.18
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Prices updated: 2026-03-04
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Format Legality

Brawl Legal
Commander Legal
Duel Legal
Gladiator Legal
Historic Legal
Legacy Legal
Oathbreaker Legal
Timeless Legal
Vintage Legal

Similar Cards

Other Printings (2 total)

Community Stats

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Often Played With

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Frequently Asked Questions

What is Mystery Key? Basics

Mystery Key is a Artifact — Equipment card from the Magic: The Gathering trading card game.

Its ability reads: "When equipped creature deals combat damage to a player, sacrifice this Equipment. If you do, draw three cards. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)"

How much mana does Mystery Key cost to cast? Basics

Mystery Key has a mana cost of {1}{U}, which equals 2.0 total mana (converted mana cost/mana value).

It requires U mana to cast.

What does mana cost mean in Magic: The Gathering? Basics

Mana cost is the amount and type of mana required to cast a spell in Magic: The Gathering.

Mystery Key's mana cost of {1}{U} means you need to pay that much mana from your lands or other sources.

Colored symbols (W=White, U=Blue, B=Black, R=Red, G=Green) must be paid with that specific color, while numbers can be paid with any color.

What is converted mana cost (CMC) or mana value? Basics

Converted mana cost (now officially called "mana value") is the total amount of mana in a card's mana cost, regardless of color.

Mystery Key has a mana value of 2.0. This is important for effects that care about a spell's total cost, like cascade or cards that say "mana value 3 or less."

What is oracle text? Basics

Oracle text is the official, current rules text for a Magic card as maintained by Wizards of the Coast. It supersedes any printed text on older cards.

Mystery Key's current oracle text is: "When equipped creature deals combat damage to a player, sacrifice this Equipment. If you do, draw three cards. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)"

What is the current price of Mystery Key? Pricing

The current market price for Mystery Key is approximately $0.09 USD on TCGPlayer.

On Cardmarket (Europe), it's approximately €0.18 EUR.

Where can I buy Mystery Key? Pricing

You can purchase Mystery Key from major MTG retailers including:

Prices vary by condition and printing. Check multiple sellers to find the best price.

What is the difference between normal and foil cards? Pricing

Foil cards have a shiny, holographic finish that makes them more collectible. They are functionally identical to normal cards but typically cost more due to their rarity and visual appeal.

Is Mystery Key legal in Standard? Legality

Format legality information for Mystery Key in Standard is not available.

Standard is a rotating format that only allows cards from the most recent sets.

Is Mystery Key legal in Modern? Legality

Format legality information for Mystery Key in Modern is not available.

Modern includes all cards printed in a standard-legal set from 8th Edition forward.

Is Mystery Key legal in Commander (EDH)? Legality

Mystery Key is Legal in Commander (EDH) format.

Commander is a casual multiplayer format where you build a 100-card singleton deck around a legendary creature.

Is Mystery Key legal in Pioneer? Legality

Format legality information for Mystery Key in Pioneer is not available.

Pioneer is a non-rotating format that includes all standard-legal sets from Return to Ravnica forward.

Is Mystery Key legal in Legacy? Legality

Mystery Key is Legal in Legacy format.

Legacy allows almost all cards ever printed, with a substantial ban list for balance.

Is Mystery Key legal in Vintage? Legality

Mystery Key is Legal in Vintage format.

Vintage is the most permissive format, allowing almost all cards with only a minimal ban list. Some powerful cards are "Restricted" (limited to 1 copy).

Is Mystery Key legal in Pauper? Legality

Format legality information for Mystery Key in Pauper is not available.

Pauper only allows cards that have been printed at common rarity in a paper or online set.

What is format legality in MTG? Legality

Format legality indicates which official MTG formats allow a card to be played:

  • Legal: Card is allowed in the format
  • Banned: Card is prohibited from play
  • Restricted: Limited to 1 copy (Vintage only)
  • Not Legal: Card was never part of that format's card pool

Different formats have different banned lists based on power level and game balance.

What set is Mystery Key from? Details

This printing of Mystery Key is from PLST (PLST), with collector number CLB-85.

Mystery Key may also appear in other MTG sets with different art or special treatments.

What is Mystery Key's rarity? Details

Mystery Key is a uncommon card in PLST.

Card rarity affects both availability and price. From rarest to most common: Mythic Rare → Rare → Uncommon → Common.

Who illustrated Mystery Key? Details

Mystery Key was illustrated by Yeong-Hao Han.

Magic: The Gathering features artwork from hundreds of talented artists, and many cards have been reprinted with new art over the years.

💬 Card Discussion

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