As long as Nidoking is in play, your attacks by Nidoran ♀, Nidorina, Nidoqueen, Nidoran ♂, and Nidorino do 10 more damage to the Defending Pokémon.
Attacks
40Earth Poison
If the Defending Pokémon already has any damage counters on it, the Defending Pokémon is now Poisoned.
Bound Crush
Choose 1 of your opponent's Pokémon. This attack does 60 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) Nidoking can't use Bound Crush during your next turn.
How much is Nidoking #8/112 worth?
A raw copy of Nidoking #8/112 (FireRed & LeafGreen, 2004) is worth about $28.78 right now, based on the latest market data from November 5, 2026. Across the 3 printings we track, copies run anywhere from $23.50 to $926.08 depending on the version you're holding.
Grading changes the math on this one: a PSA 10 is valued around $1,603.25, roughly 55.7x the raw price, while a PSA 9 sits near $410.98. 413 copies have been graded to date, and 11% of them came back a 10 — worth knowing before you pay grading fees.
Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.