Flip a coin. If heads, this attack does 30 damage plus 10 more damage; if tails, this attack does 30 damage and Nidoking does 10 damage to itself.
20Toxic
The Defending Pokémon is now Poisoned. It now takes 20 Poison damage instead of 10 after each player's turn (even if it was already Poisoned).
“Uses its powerful tail in battle to smash, constrict, then break its prey's bones.”
How much is Nidoking #11/130 worth?
Right now (November 4, 2026) the going rate for an ungraded Nidoking #11/130 from Base Set 2 is about $43.73.
Grading changes the math on this one: a PSA 10 is valued around $410.75, roughly 9.4x the raw price, while a PSA 9 sits near $145.39. 3,391 copies have been graded to date, and 1% 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.
Base Set 2 · #11/130 · Rare Holo · 2000
NidokingAquapolis · 2003
NidokingExpansion Pack (No Rarity) · 1996
NidokingBase · 1999
NidokingLegendary Collection · 2002
NidokingAquapolis · 2003
Giovanni's NidokingGym Challenge · 2000
