Koffing
Cosmic Eclipse · #243/236 · Rare Secret · 2019
Price history
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Graded values
Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.
Graded population census · updated 2026-09-17
Population data from PriceCharting, updated monthly.
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Attacks
“Its thin, balloon-like body is inflated by horribly toxic gases. It reeks when it is nearby.”
How much is Koffing #243/236 worth?
As of October 15, 2026, Koffing #243/236 from Cosmic Eclipse sells for around $37.93 in raw, ungraded condition.
Grading changes the math on this one: a PSA 10 is valued around $388.75, roughly 10.2x the raw price, while a PSA 9 sits near $76.54. 2,137 copies have been graded to date, and 30% of them came back a 10 — worth knowing before you pay grading fees.
These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.
