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Knightmare Corruptor Iblee BLMR-EN057 (YuGiOh Battles of Legend: Monstrous Revenge) — is it worth grading?

Is Knightmare Corruptor Iblee BLMR-EN057 worth grading?

Yu-Gi-Oh! · YuGiOh Battles of Legend: Monstrous Revenge · full price guide →

Worth grading only if it gems

A PSA 10 Knightmare Corruptor Iblee BLMR-EN057 brings $40.00 versus $0.69 raw — a $39.31 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($7.00) only about breaks even after fees, so the case rests on gemming.

Raw (NM)
$0.69
PSA 10
$40.00
PSA 9
$7.00
Gem premium
58×
As of
Sep 13, 2026

Break-even by outcome and fee

Knightmare Corruptor Iblee BLMR-EN057: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$40.00+$14.31−$10.69−$111
PSA 9$7.00−$18.69−$43.69−$144
PSA 8$6.14−$19.55−$44.55−$145

Net = sale price − $0.69 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.

Expected value — how often does it need to gem?

Knightmare Corruptor Iblee BLMR-EN057: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$15.25−$35.44
50%$23.50−$27.19
75%$31.75−$18.94

At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.

Which grader pays the most — and what a 10 takes

All centering standards
Knightmare Corruptor Iblee BLMR-EN057: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$52.00best55/4570/30
PSA 10$40.00−$12.0055/4575/25
CGC 10$24.00−$28.0055/4575/25
SGC 10$24.00−$28.0055/4575/25

Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.

Knightmare Corruptor Iblee BLMR-EN057 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$40.00$24.00$52.00$24.00
9.5$8.00
9$7.00
8$6.14
7$0.75

Swipe the table for the other grading companies →

Run your own numbers

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Enter the seller’s asking price to see your net outcome per grade.

Other YuGiOh Battles of Legend: Monstrous Revenge cards worth checking

Full set checklist

Grading Knightmare Corruptor Iblee BLMR-EN057 — FAQ

Is Knightmare Corruptor Iblee BLMR-EN057 worth grading?

A PSA 10 Knightmare Corruptor Iblee BLMR-EN057 brings $40.00 versus $0.69 raw — a $39.31 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($7.00) only about breaks even after fees, so the case rests on gemming.

How much is a PSA 10 Knightmare Corruptor Iblee BLMR-EN057 worth compared with raw?

A PSA 10 Knightmare Corruptor Iblee BLMR-EN057 (YuGiOh Battles of Legend: Monstrous Revenge) sells for about $40.00 versus $0.69 for a raw near-mint copy — a 58× premium as of Sep 13, 2026.

Which grading company is best for Knightmare Corruptor Iblee BLMR-EN057?

By resale value, BGS 10 leads at $52.00, ahead of PSA 10 at $40.00. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Knightmare Corruptor Iblee BLMR-EN057 need for a BGS 10?

BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.

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