Professor's Research: Professor Willow #89 — Go

PriceCharting market prices as of 2026-08-29:

TCGplayer market price: $5.89 (as of 2026-08-29)

Market context: ungraded price +0.0% over 30 days. -0.7% over 90 days.

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Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-go/pokemon-japanese-go-professor-s-research-professor-willow-89