Slowking
HeartGold & SoulSilver · #12/123 · Rare Holo · 2010
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 2026-07-08
Reverse HolofoilPopulation data from PriceCharting, updated monthly.
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Attacks
“It has incredible intellect and intuition. Whatever the situation, it remains calm and collected.”
How much is Slowking #12/123 worth?
As of August 23, 2026, Slowking #12/123 from HeartGold & SoulSilver sells for around $35.93 in raw, ungraded condition. Across the 3 printings we track, copies run anywhere from $18.51 to $898.05 depending on the version you're holding.
Grading changes the math on this one: a PSA 10 is valued around $233.14, roughly 6.5x the raw price, while a PSA 9 sits near $82.00. 110 copies have been graded to date, and 4% 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.
