moonstone Assay OfficeCard Market Report
Great Ball
Report no.MSR-TK-SM-L-21
Dated2026-09-18
Raw market$0.16
Gems easier than 75% of its price band ($0.13 to $0.25).
Reference class: its price band ($0.13 to $0.25). Percentiles are recomputed nightly from recorded data across every tracked card. Nothing modeled.
moonstone Pro
The full Great Ball 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. The complete card report includes:
- The stamped BUY / HOLD / SELL call and 180-day target, formula printed in full
- Verified sold medians for every tracked grade, with sample sizes
- Weekly sales velocity from the daily graded tape
- The registry growth curve and gem-rate drift
- Grading EV with the full break-even ledger
- The numbers behind every verdict stamp
Pro also includes 300 Cynthia questions a day and binder-page scanning. Browse all reports
The full dossier covers 0 verified grade medians, the registry growth curve, sales velocity, and grading EV for Great Ball · SM trainer Kit (Lycanroc) #21.