Corrupted Key
CMB1Mystery Booster Playtest Cards 2019/#39/2019Rare
Colour IDMV 1
Current paper retail
Card Kingdom$2.29
Cardmarket€5.23
TCGplayer$0.73
ManaPool$0.59
Buylist (dealers pay)
Card Kingdom$0.80
Paper retail history (USD)
3 providers
Latest $2.29High $2.29Low $1.99▲ 15.1%
Market and collecting
Market overview
$0.73TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 0.0%30d▼ 6.4%90d▲ 5.8%
90d high
$0.78
90d low
$0.62
Paper printings priced
2
Currently 2nd
Cheapest paper printing
$0.31
Mystery Booster Playtest Cards 2021
- Down 6.4% over the last 30 days on TCGplayer.
- Currently 6% below its 90 day high of $0.78.
- This is the most expensive paper printing currently priced (2 priced in total).
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
Collect
Play
Compare printings (2 priced)
Gameplay and rules
Artifact — Key
As long as Corrupted Key is tapped, creatures you control have menace and deathtouch.
Card capabilities
Artifact
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Rulings (2)
wotc12 Nov 2019
Key is an artifact subtype. It has no rules meaning or function by itself, but other cards and abilities may refer to it.
wotc12 Nov 2019
Corrupted Key’s ability doesn’t allow you to tap it whenever you wish. You’ll need another card to turn the key.
Similar cardsOpen Card Finder →
Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
About this card
Corrupted Key
Corrupted Key is an Artifact — Key, with mana cost {B} (mana value 1). Printed 2 times across MTG sets.
Format legality: Commander: not_legal, Modern: not_legal, Standard: not_legal, Pioneer: not_legal, Legacy: not_legal, Pauper: not_legal.
Current headline price on TCGplayer: $0.73 (down 6.4% over 30 days).
Frequently asked
Corrupted Key FAQ
How much is Corrupted Key worth?
The current TCGplayer USD retail price for Corrupted Key is $0.73. It is down 6.4% over the last 30 days. Over 90 days it has ranged from $0.62 to $0.78.
What is the cheapest printing of Corrupted Key?
The cheapest currently priced paper printing is from Mystery Booster Playtest Cards 2021 at $0.31 on TCGplayer.
What is the most expensive printing of Corrupted Key?
The most expensive currently priced paper printing is from Mystery Booster Playtest Cards 2019 at $0.73 on TCGplayer.
How many printings of Corrupted Key are there?
Corrupted Key has been printed 2 times in English paper sets that MTGPrices tracks.
What set was Corrupted Key first printed in?
The earliest English paper printing that MTGPrices tracks is from CMB1 #39, released 2019-11-07.
What is the newest printing of Corrupted Key?
The most recent English paper printing that MTGPrices tracks is from CMB2 #39, released 2021-08-20.
Is Corrupted Key legal in Commander?
Corrupted Key is not currently legal in Commander per Scryfall's legality feed.
Is Corrupted Key legal in Modern?
Corrupted Key is not currently legal in Modern per Scryfall's legality feed.