Seismitoad #105 Hits 924% ROI in Black Bolt Grading Rush
If you've been sleeping on Pokémon Black Bolt, your spreadsheet is about to wake you up.
This set is quietly crushing it for graders willing to dig past the headline Legendary ex cards. Seismitoad #105 just posted a 924% ROI—that's the kind of gap between raw and PSA 10 that separates a day job from a grading operation that actually moves needle.
Let's pull the data and see where the real money is hiding in Black Bolt.
The Seismitoad Anomaly
Seismitoad #105 is the outlier in the best way. At $246.93 raw, it costs less than a pizza and a beer. PSA 10 copies sell for $2,784.73. That's an $2,512.80 net profit per card after grading and selling fees—assuming you hit that gem rate.
The catch? Only 18% of submissions come back PSA 10 or higher. But when they do, the juice is absolutely there. With 1,271 sales per year tracked in our data, there's real liquidity too. This isn't a dead-end spec.
The story here is scarcity masquerading as common. Seismitoad's low gem rate means most people either didn't grade it or got stung by subgem results. That's left PSA 10s thin on the market. You grade a few, hit on one or two, and you've covered your losses ten times over.
The Full Black Bolt Card Rankings
Here's where the tier-1 grading plays shake out across the set (numbers assume PSA Value Bulk at $25):
| Card | Raw | PSA 10 | Gem Rate | Net Profit | ROI |
|---|---|---|---|---|---|
| Seismitoad #105 | $246.93 | $2,784.73 | 18% | $2,512.80 | 924.1% |
| Zekrom ex #172 | $585.00 | $1,480.52 | 52% | $870.52 | 142.7% |
| Victini #171 | $600.19 | $1,519.00 | 51% | $893.81 | 143.0% |
| Zekrom ex #166 | $266.37 | $525.00 | 63% | $233.63 | 80.2% |
| Dwebble #129 | $61.50 | $794.21 | 19% | $707.71 | 818.2% |
| Haxorus #147 | $65.60 | $405.00 | 40% | $314.40 | 347.0% |
| Kyurem ex #165 | $73.00 | $191.50 | 65% | $93.50 | 95.4% |
| Genesect ex #169 | $46.00 | $137.75 | 66% | $66.75 | 94.0% |
Why Seismitoad and Dwebble Lead
Both are low-raw-price cards with absurdly low gem rates. That's the arbitrage fingerprint: high volatility in the population data = high payoff when you nail the grade.
Seismitoad's 18% gem rate means PSA 10 copies are genuinely rare. Only 4,293 total have ever been graded—tiny for a card this accessible. Dwebble's even more extreme: 19% gem rate across just 866 submissions. You're not fighting a flooded market; you're picking a handful of gems from a tiny pool.
Zekrom ex #172 and Victini #171 offer a different play: higher gem rates (52% and 51% respectively) mean more consistent profits, but smaller EV swings. If you want to grade 50 cards and sleep at night, these are your bread-and-butter picks. If you're swinging for the fences, Seismitoad and Dwebble reward patience and luck.
The Gem-Rate Funnel
Notice the pattern: cards with 60%+ gem rates (Kyurem ex, Genesect ex, the second Zekrom ex) deliver reliable low-margin profits. Cards under 20% are lottery tickets with five-figure payoffs. Your risk tolerance should dictate which column you target.
If you're running a volume operation, stack the high-gem-rate cards. If you're looking for that one card per week that pays for everything else, Seismitoad and Dwebble are where you hunt.
Black Bolt in the Broader Ecosystem
Black Bolt landed just as the TCG market has been obsessing over Mega Evolution sets and the upcoming 30th Celebration launch in September. That timing matters: vintage players are hunting nostalgia plays, but graders who missed the initial Black Bolt hype are just now pricing in the gem-rate data.
Neo-era and vintage WOTC holographic cards are trending hard right now, and Black Bolt's population data is still settling. That means raw prices could still shift downward as more copies hit the secondary market, or upward if demand stays concentrated in PSA 10. Either way, the gem-rate arbitrage window won't stay this wide forever. Sets cool, populations grow, the gap tightens.
How We Calculate This
Expected Value (EV) is the sum across all grades of: P(grade) × price × (1 − sell fee) − raw cost − grading fee. It's built on live population data from our graded-card database—real PSA 10 comps, real gem rates, real sell-through volume. Net profit is EV minus the raw cost and grading fee in dollars. ROI is net profit ÷ raw cost × 100. Learn more about our methodology.
The Move
Black Bolt isn't the hottest set right now—that's the Mega Evolution splash and the 30th Celebration hype machine. But that's exactly why the gem-rate arbitrage is fat. Nobody's looking, which means PSA 10s aren't getting bid up into fantasy land.
Seismitoad #105 and Dwebble #129 are your proof of concept. A few bucks in, hundreds out if you hit. If you want to run this screen across all 14,000+ cards in our database—filtered by gem rate, by ROI, by sales velocity—and updated weekly as populations shift, you'll want Pro. That's where the ranked EV and net-profit feeds are. This article's built on Pro data. Your next spec list should be too.