What stands out

Gems harder than 90% of its price band ($2 to $4).

Reference class: its price band ($2 to $4). Percentiles are recomputed nightly, by disclosed rule, from recorded data across every tracked card.

01The verdict block2 readings

What the fixed formulas say about the figures below, with the arithmetic shown.

Assay

Caution1Context1

Each stamp is one fixed formula applied identically to every card. Supportive and caution mark a reading that cuts the same way for anyone holding the card. Context marks a fact that is good news to a buyer and bad news to a holder, so the desk does not pick a side.

Registry inflowContext

STEADY INFLOW

New slabs a week against the recorded PSA population.

Character demandCaution

NICHE CHARACTER

The species demand index, a weighted percentile across every tracked species.

Every verdict is a disclosed formula over recorded data, applied with the same fixed thresholds to every card. No discretionary price forecasting is used, and the arithmetic is printed so it can be reproduced.

moonstone Pro

The full Challenge! dossier is sealed

Pro breaks the seal on our call: a stamped buy, hold, or sell and a fair value on every rated card, each a disclosed formula over recorded data. Below is every section this dossier is holding back.

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What this dossier is holding6 sealed sections

02
The call
The rating was refused on this card 2026-10-28 and the refusal states its reason; members read why in full.
03
The tape · verified sold medians
1 grades carry a verified sold median on this card, each with its sample size. Comps through 2026-10-10.
04
The registry
10 daily PSA population snapshots on file, 75 days of continuous history, drawn as a growth curve.
05
Sales velocity
2 grades carry a measured weekly sale rate, each over its own 32 day window.
06
Market sentiment
This card reads as a non-holo finish; the desk ranks that class and the species against every other.
07
The comparables
5 comparable cards across 2 reference sets, every row linked to its own dossier.

See a full report, freeMew exPaldean Fates · open to everyone, nothing sealed

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Pro also includes 300 Cynthia questions a day and binder-page scanning. Browse all reports

2078 report editions stamped and 4531 dated calls on the clock, each with a falsifier written at stamp time and never edited. Counted 2026-10-27. How our calls scored

Explore

Challenge! price and historyThe live card page: price, chart and graded ladder.All Team Rocket pricesEvery card in the set, priced off the same tape.Team Rocket set reportHow the whole set has moved and what leads it.Cards illustrated by Kagemaru HimenoEverything this illustrator has drawn, with prices.This week's biggest moversThe widest recorded moves across the catalog.All market reportsEvery card and set we publish a dossier on.How our calls scoredThe public ledger of every call, win or lose.Every Pokémon setThe full set index, oldest to newest.

Other Challenge! printings

Challenge! 106/110 · Legendary Collection