Mastemon (Alternate Art) Hackers' Slumber Secret Rare Digimon card — value and price

Mastemon (Alternate Art)

Hackers' Slumber · Secret Rare
Digimon dgm:657004 TCGplayer (daily snapshot, 2026-09-07)
Fair market value
$54.93
Consensus of 1 market price guide. Typical $46.36 – $63.75.
▼ 3% · 47d
Sources: TCGplayer (daily snapshot, 2026-09-07) · Near Mint, raw
Optimal buy
$50.58
Never pay above $52.97
Optimal sell
$58.00
Never sell below $55.85
Buy this card · aim to pay under $52.97
TCGplayer →Find on eBay →Graded (PSA 10) →Amazon: sealed →
When it arrives: a penny sleeve + toploader is all it takes to keep it Near Mint.
Penny sleevesToploaders

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Selling this card
Optimal sell $58.00 · never below $55.85. Value your copy for the live net-after-fees calculator.
Where to sell
eBay~13.25% + $0.30Largest audience; on any listing use “Sell one like this” to prefill yours.TCGplayer~10–11%Best for singles; buyers expect competitive, data-driven pricing.
Shipping & protection supplies
Sleeve + toploader in a team bag, taped inside a bubble mailer, shipped with tracking.
Penny sleevesToploadersTeam bagsBubble mailersPainter’s tape

Amazon Business Free to join and gives bulk pricing on sleeves, toploaders and mailers — worth it if you ship cards often.

Related cards
Mastemon (Alternate Art) cardMastemon (Alternate Art)Dimensional Phase$67.08Mastemon (Alternate Art) cardMastemon (Alternate Art)Release Special Booster 1.5$6.05Keisuke Amasawa (SP) cardKeisuke Amasawa (SP)Hackers' Slumber$57.15Takumi Aiba (SP) cardTakumi Aiba (SP)Hackers' Slumber$54.75Chitose Imai (SP) cardChitose Imai (SP)Hackers' Slumber$68.10Ryuji Mishima (SP) cardRyuji Mishima (SP)Hackers' Slumber$54.43
All Mastemon (Alternate Art) printings →More Hackers' Slumber →
Common questions
How much is Mastemon (Alternate Art) worth?

Mastemon (Alternate Art) from Hackers' Slumber has a fair market value of about $54.93 (Near Mint, raw), based on a consensus of current market price guides.

What is the best price to sell Mastemon (Alternate Art)?

List around $58.00 to clear without leaving money on the table; that nets about $45.06 after fees and shipping.

What should I pay to buy Mastemon (Alternate Art)?

A disciplined buy target is about $50.58 — a discount to fair value that keeps an edge. Aim not to pay above $52.97.

Where can I buy Mastemon (Alternate Art)?

Mastemon (Alternate Art) is sold on eBay, TCGplayer, and Amazon. Compare live listings against the fair value of $54.93 and aim to pay under $52.97 — SplitShot links you straight to current listings at each marketplace.

Is now a good time to buy Mastemon (Alternate Art)?

Mastemon (Alternate Art) is trending stable lately. A disciplined entry is under $52.97; paying near or below $50.58 keeps a margin of safety versus the $54.93 fair value.

Estimate for guidance, not an appraisal. Value your exact copy →