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Professor's Letter (Pokemon League) price and historyThe live card page: price, chart and graded ladder.All League & Championship Cards pricesEvery card in the set, priced off the same tape.League & Championship Cards set reportHow the whole set has moved and what leads it.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.

What stands out

Gems harder than 82% of its price band ($4 to $8).

Reference class: its price band ($4 to $8). Percentiles are recomputed nightly, by disclosed rule, from recorded data across every tracked card.

01The verdict block1 readings

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

Assay

Caution1

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.

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 Professor's Letter (Pokemon League) dossier is sealed

Pro breaks the seal on our call: a stamped buy, hold, or sell and a 180-day target price on every rated card, each a disclosed formula over recorded data. Below is every section this dossier is holding back.

What this dossier is holding2 sealed sections

02
The call
The rating was refused on this card 2026-10-11 and the refusal states its reason; members read why in full.
03
Market sentiment
This card reads as a promo finish; the desk ranks that class and the species against every other.

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

1631 report editions stamped and 3418 dated calls on the clock, each with a falsifier written at stamp time and never edited. Counted 2026-10-11.

Professor's Letter (Pokemon League) League & Championship Cards Market Report