Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
PSA 10 price history$3,100.00
PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.
Graded population census · updated 2026-07-08
PSA654 graded · 83 gem 10
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CGC127 graded · 17 gem 10
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Population data from PriceCharting, updated monthly.
Abilities
Earth Rage
Once during your turn (before your attack), if Nidoking is your Active Pokémon, you may flip a coin. If heads, put a damage counter on each of your opponent's Benched Pokémon. This power can't be used if Nidoking is affected by a Special Condition.
Attacks
50+Giant Horn
Flip a coin. If heads, this attack does 50 damage plus 30 more damage.
How much is Nidoking #H18/147 worth?
As of August 14, 2026, Nidoking #H18/147 from Aquapolis sells for around $230.98 in raw, ungraded condition.
Grading changes the math on this one: a PSA 10 is valued around $3,100.00, roughly 13.4x the raw price, while a PSA 9 sits near $609.19. 654 copies have been graded to date, and 13% 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 Nidoking has moved over time.
Aquapolis · #H18/147 · Rare Holo · 2003
