Best Brock Cards to Grade

The Brock cards where grading pays off most — ranked by net profit from raw to PSA 10 after real grading costs, with each card's estimated gem rate and risk-adjusted return. Top pick: Brock's Rhydon (Gym Heroes) at +$971 best-case net.

Best cards to grade, ranked by risk-adjusted grading profit

#	Card	Raw	PSA 10	Cost	Net (best)	Risk-adj.
1	Brock's RhydonGym Heroes #2 · 1.5% gem rate	$40	$1,127	$116	+$971	−$85
2	Brock's NinetalesGym Challenge #3 · 9% gem rate	$78	$1,016	$115	+$823	−$14
3	Brock's VulpixGym Challenge #37 · 17% gem rate	$7	$595	$86	+$502	+$23
4	BrockGym Heroes #15 · 1.8% gem rate	$45	$584	$86	+$453	−$61
5	Brock's GolemGym Heroes #20 · 20.5% gem rate	$26	$295	$73	+$196	−$13
6	Brock's GritTeam Up #172 · 52.2% gem rate	$71	$245	$72	+$102	+$30
7	Brock's LickitungGym Heroes #41 · 7.9% gem rate	$7	$159	$72	+$81	−$50
8	Brock's OnixGym Heroes #21 · 18.3% gem rate	$12	$141	$71	+$58	−$44
9	Brock's GritEvolutions #107 · 31.1% gem rate	$9	$118	$71	+$38	−$32
10	BrockGym Heroes #98 · 14.5% gem rate	$10	$81	$71	+$0	−$55

Net (best) = PSA 10 value − raw value − grading cost (PSA fees as of 2026-06-28). Risk-adjusted weights every grade by its estimated likelihood from PSA population (cumulative and biased toward nicer copies — a guide, not a guarantee).

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