The Master of Keys
DSCDuskmourn: House of Horror Commander/#4/2024MythicBorderless
Colour IDMV 3
Current paper retail
TCGplayer$1.99
Card Kingdom$2.99
Cardmarket€1.31
ManaPool$0.26
Buylist (dealers pay)
Card Kingdom$1.35
MTGO (Cardhoarder)
retail$4.08 tix
Paper retail history (USD)
3 providers
Latest $2.99High $3.99Low $2.49▼ 14.3%
Market and collecting
Market overview
$1.99TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 1.5%30d▼ 27.4%90d▼ 16.0%
90d high
$2.84
90d low
$1.95
Paper printings priced
1
Currently 1st
Cheapest paper printing
$0.98
Duskmourn: House of Horror Commander
- Down 27.4% over the last 30 days on TCGplayer.
- Currently 30% below its 90 day high of $2.84.
- Foil copies of this printing are trading 51% below nonfoil.
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
Collect
Play
Compare printings (1 priced)
Gameplay and rules
Legendary Enchantment Creature — Horror
Flying
When The Master of Keys enters, put X +1/+1 counters on it and mill twice X cards.
Each enchantment card in your graveyard has escape. The escape cost is equal to the card's mana cost plus exile three other cards from your graveyard. (You may cast cards from your graveyard for their escape cost.)
3 / 3
Keywords
FlyingMill
Card capabilities
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Rulings (11)
wotc20 Sept 2024
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as an escape cost), add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was and no matter whether an alternative cost was paid.
wotc20 Sept 2024
Once you begin casting a spell with escape, it immediately moves to the stack. Players can't take any other actions until you're done casting the spell.
wotc20 Sept 2024
If you're casting a Room with escape, you choose which half to cast, then pay the appropriate cost plus exiling three cards. The same is true for split cards, adventurer cards, and prototype cards.
wotc20 Sept 2024
After an escaped spell resolves, it returns to its owner's graveyard if it's not a permanent spell. If it is a permanent spell, it enters and will return to its owner's graveyard if it dies later. It can escape again.
wotc20 Sept 2024
If a spell you're casting with escape has an additional cost of discarding cards or sacrificing permanents, you may exile cards discarded or sacrificed this way to pay that part of its escape cost.
wotc20 Sept 2024
If The Master of Keys is no longer on the battlefield when its second ability resolves, you'll still mill twice X cards.
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Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
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About this card
The Master of Keys
The Master of Keys is a Legendary Enchantment Creature — Horror, with mana cost {X}{W}{U}{B} (mana value 3).
Format legality: Commander: legal, Modern: not_legal, Standard: not_legal, Pioneer: not_legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $1.99 (down 27.4% over 30 days).
Frequently asked
The Master of Keys FAQ
How much is The Master of Keys worth?
The current TCGplayer USD retail price for The Master of Keys is $1.99. It is down 27.4% over the last 30 days. Over 90 days it has ranged from $1.95 to $2.84.
What is the cheapest printing of The Master of Keys?
The cheapest currently priced paper printing is from Duskmourn: House of Horror Commander at $0.98 on TCGplayer.
What set was The Master of Keys first printed in?
The earliest English paper printing that MTGPrices tracks is from DSC #4, released 2024-09-27.
Is there a foil version of The Master of Keys?
Yes. On this printing, foil copies trade at $0.98 versus $1.99 for nonfoil, which is 51% less expensive on TCGplayer.
Is The Master of Keys legal in Commander?
Yes, The Master of Keys is currently legal in Commander per Scryfall's legality feed.
Is The Master of Keys legal in Modern?
The Master of Keys is not currently legal in Modern per Scryfall's legality feed.
Is The Master of Keys legal in Standard?
The Master of Keys is not currently legal in Standard per Scryfall's legality feed.
What does The Master of Keys do?
The Master of Keys is a Legendary Enchantment Creature — Horror with mana cost {X}{W}{U}{B}. Its Oracle text reads: "Flying When The Master of Keys enters, put X +1/+1 counters on it and mill twice X cards. Each enchantment card in your graveyard has escape. The escape cost is equal to the card's mana cost plus exile three other cards from your graveyard. (You may cast cards from your graveyard for their escape cost.)".