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$24.19
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 · 3d agoeBayPSA 10
Lowest $225· Median $245
5 active listings
eBayPSA 9
Lowest $50.00
1 active listing
eBayPSA 8
Lowest $24.19· Median $38.00
2 active listings
eBayPSA 7
Lowest $32.00
1 active listing
eBayCGC 10
Lowest $240· Median $10,000
2 active listings
eBayCGC 9
Lowest $21.50· Median $25.99
7 active listings
eBayOther Graded
Lowest $94.44
1 active listing
eBayRaw / Ungraded
Lowest $2.85· Median $8.00
180 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 | $225 | 5 | Listings → |
| PSA 9 | $50.00 | 1 | Listings → |
| PSA 8 & under | $24.19 | 3 | Listings → |
| CGC 9.5+ | $240 | 2 | Listings → |
| CGC 9 & under | $21.50 | 7 | Listings → |
| Raw / Ungraded | $2.85 | 180 | 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.