Slowking
Holon Research Tower · #25/86 · Rare · 2005JPN
All 61 Slowking cards ranked by value →Printings & 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 2026-09-21
Population data from PriceCharting, updated monthly.
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SlowkingSouthern Island · 1999How much is Slowking #25/86 worth?
A raw copy of Slowking #25/86 (Holon Research Tower, 2005) is worth about $20.00 right now, based on the latest market data from November 6, 2026.
Grading changes the math on this one: a PSA 10 is valued around $366.55, roughly 18.3x the raw price, while a PSA 9 sits near $120.26. 10 copies have been graded to date, and 40% of them came back a 10 — worth knowing before you pay grading fees.
We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Slowking has moved over time.
