Prices updated 7/26/2026
Computer Error — PSA 8
Wizards Black Star Promos · #16
Set
Wizards Black Star Promos
Series
Base
Rarity
Promo
Number
16
Supertype
Trainer
Artist
Sumiyoshi Kizuki
Subtypes
Rocket's Secret Machine
Prices & Marketplace
PSA 8 · cheapest right now
live eBay asks$20.00
cheapest of 2 PSA 8 listings for Computer Error
See PSA 8 listings on eBay →Asking prices, not sold prices. Condition is settled by the grade, but always check the listing.
TCGPlayer (NM market)
referenceNormal
low $4.50$6.60
Buy on eBay
active asks · 8d agoeBayPSA 10
Lowest $226· Median $250
4 active listings
eBayPSA 8
Lowest $20.00· Median $38.00
2 active listings
eBayCGC 10
Lowest $49.99· Median $10,000
2 active listings
eBayCGC 9
Lowest $21.50· Median $25.99
7 active listings
eBayOther Graded
Lowest $80.37
1 active listing
eBayRaw / Ungraded
Lowest $2.85· Median $11.69
137 active listings·57% below market
Recent sales
by gradeReal sold prices — what buyers actually paid, not an estimate.
Sold-price data from Silph Co Analytics. Outliers excluded.
Price History
29 price points+28.2% (+$1.45)
Apr 5$5.15 – $6.60Jul 26
Listings by grade
The cheapest copy listed on eBay at each grade right now — what the slab is worth paying for.
| Grade | Lowest ask | Listed | |
|---|---|---|---|
| PSA 10 | $226 | 4 | Listings → |
| PSA 8 & under | $20.00 | 2 | Listings → |
| CGC 9.5+ | $49.99 | 2 | Listings → |
| CGC 9 & under | $21.50 | 7 | Listings → |
| Raw / Ungraded | $2.85 | 137 | Listings → |
These are current asking prices, not sold prices — a grade with one optimistic listing can look far pricier than it trades for. Recent sold comps are below.