Computer Error #16
📉 Dip AlertAs card #16 in Wizards Black Star Promos, Computer Error is a Common Trainer card worth about $7.00 ungraded.
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By CardLedger Research · Market data updated · Prices from TCGplayer & Cardmarket
Net estimates use each marketplace's default seller tier and typical shipping — fees vary by category, account status and payment method, so confirm current rates before selling.
There isn't enough recent sold history to call direction on Computer Error #16. Sell on your own schedule.
Computer Error at a glance
- Common rarity.
- Current TCGplayer market value $7.00 (Normal).
- No published price history.
- Cardmarket does not list a price.
- Wizards Black Star Promos, Base series, 1999.
Computer Error price by printing
Live TCGplayer and Cardmarket values for Computer Error #16.
TCGplayer prices, updated 2026/10/26.
- Low
- $2.75
- Mid
- $7.00
- High
- —
Verify the card image and live listings on TCGplayer, Cardmarket or eBay.
Is this Computer Error a good deal?
Put any asking price against today's live market value for Computer Error #16.
Enter what a seller is asking for Computer Error #16. We compare it to today's live market value.
About Computer Error #16
Printed as #16 in Wizards Black Star Promos, Computer Error belongs to the Base series and dates to 1999. This Trainer is used in decks as well as collections.
The card is illustrated by Sumiyoshi Kizuki and currently trades at $7.00 for the Normal printing, with a low-to-high range of $2.75 to —.
Card facts
- Set
- Wizards Black Star Promos
- Series
- Base
- Number
- #16 / 53
- Rarity
- Common
- Illustrator
- Sumiyoshi Kizuki
- Released
- 1999/07/01
Computer Error attacks, abilities & battle stats
Printed card text and battle statistics for Computer Error #16 — the playability layer behind the price.
Battle stats
- Retreat cost
- —
- Attacks
- —
Computer Error price analysis
What drives the current market value of Computer Error #16.
There is 1 tracked printing here — Normal at $7.00.
At $7.00 there is enough headroom for both flipping and collecting; compare the low and high ends before committing.
At $7.00 there is enough headroom for both flipping and collecting; compare the low and high ends before committing.
Cardmarket does not list Computer Error, so TCGplayer and eBay are the reference markets.
Computer Error price history & movement
Cardmarket does not publish recent price history for this card, so use sold listings on eBay and TCGplayer to gauge short-term movement.
Across 4 recorded days the price spanned $7.00–$7.31. The most recent snapshot of $7.00 sits 0% up that range, 4.2% under the October 19, 2026 high.
Day to day the price swings by roughly 2.6% (standard deviation); the deepest recorded drawdown is 4.2%.
The latest reading marks a new recorded all-time low for this card.
Cardmarket averages
Price fingerprint
Built from CardLedger's own daily snapshots · 4 days tracked · latest
Real recorded values from our daily TCGplayer snapshots — not estimates or back-filled history. Methodology
How much would you net selling Computer Error?
Model the real take-home on a [object Object] sale across eBay, TCGplayer, Cardmarket and direct — fees and shipping included.
The $7.00 market translates to a net of about $5.77 (eBay), $5.81 (TCGplayer), $6.30 (Cardmarket), $5.94 (Whatnot) or $7.00 (direct). That $1.23 gap is the value at stake in choosing where to sell.
With this much value in the fee gap, platform choice materially changes your return. Model your exact shipping in the tool below.
Your sale
Pre-filled with the current TCGplayer market for Computer Error #16.
Modelled on each marketplace's default seller tier with your shipping input. Net payout = sale price − selling fees − outbound shipping. Fee figures are estimates (last reviewed October 15, 2026) and vary by category, account status and payment method — confirm current rates with the marketplace. Open the full seller fee calculator to model account tiers and buyer-paid shipping.
Should you grade Computer Error?
Model the break-even and PSA 9 vs PSA 10 profit on grading Computer Error #16 against today's raw market value.
Grading plan
Pre-filled with the live market value for Computer Error #16.
Both-way postage plus declared-value insurance.
Estimated graded values below are a transparent starting point based on the raw price band — edit them with real graded comps before deciding.
At $7.00 raw and $40.00 all-in grading cost, a PSA 10 nets — versus selling raw, a PSA 9 nets —. You need a graded sale of $52.98 to break even on grading.
At your stated grade odds the expected profit is — (-60.3% return on cost basis).
Grading costs, turnaround and grade outcomes vary by service and card. The estimated PSA 9 and PSA 10 values are heuristics, not predictions — always sanity-check against recent graded sold listings before committing. This is a modelling tool, not financial advice.
Computer Error within Wizards Black Star Promos
Within Wizards Black Star Promos it is the #52 most valuable of 53 tracked cards; the set median is $44.66.
Relative to the set median it is a value pick, placing it in the top 4%.
The set's top card is Lucky Stadium (#41), valued at $1,700.00.
What makes Computer Error valuable
- Sumiyoshi Kizuki illustrated this card, which adds appeal for artist-focused collectors.
- Computer Error is a Common, so condition and the specific print variant matter more than raw rarity.
- This Trainer appeals to players completing decks and collectors completing sets.
- Computer Error dates to 1999, and vintage-era supply cannot increase, which underpins long-term collector value.
- Its steady supply status keeps entry costs low, which supports steady turnover.
Buying & selling Computer Error
- Centring and surface condition matter most on Common cards; a clean copy of Computer Error can realise well above the $2.75 low end.
- Because it is a Trainer card, Computer Error has both collector and player demand — a broader buyer pool than purely collectible cards.
- Wizards Black Star Promos was released in 1999; sealed product from this era is limited, so raw singles appreciate with collector demand.
- Track the Cardmarket 7- and 30-day averages (when available) to time entries and exits.
- Check sold listings rather than asking prices — the Normal market of $7.00 reflects actual transactions on TCGplayer.
Computer Error value questions
How much is Computer Error worth?
Computer Error trades near $7.00 on TCGplayer (Normal), ranging $2.75–—; Cardmarket shows —.
Will Computer Error hold its value?
The card is steady on recent averages. Common rarity and the vintage-era Base set pedigree are the main long-term value anchors.
Is Computer Error rare?
Computer Error is a Common card from Wizards Black Star Promos (Base series, 1999). It sits in a common-to-mid rarity tier, so condition and variant matter more than raw scarcity.
What print variants exist for Computer Error?
TCGplayer tracks 1 printing: Normal ($7.00). Prices differ between variants, so always confirm which one you own or are buying.
Where can I buy or sell Computer Error?
The main marketplaces are TCGplayer (USD), Cardmarket (EUR) and eBay. Current TCGplayer market is $7.00. When selling, compare net proceeds after fees — eBay and TCGplayer typically charge 9–13%, while direct sales carry lower or no fees.
What drives Computer Error's value?
Four factors dominate: the Common rarity tier, the vintage-era Base set pedigree, playability (Trainer), and condition. Artwork by Sumiyoshi Kizuki also matters to collector demand.
