Nidoking is card #34 of 132 in Secret Wonders (2007), a Rare illustrated by Kouki Saitou. At about $19.22 it is the #29 most valuable card in the set. In a Secret Wonders booster it turns up about once every 33 packs. It is one of 22 Nidoking cards printed so far.
1999Base Set
2002Legendary Collection
2004FireRed & LeafGreen
2007Secret Wonders
2009Rising Rivals
2013Plasma Freeze
2019Team Up
2025Destined Rivals

















See the full Secret Wonders card list
An ungraded Nidoking from Secret Wonders sells for about $19.22. A PSA 10 is worth more, roughly $154 by our estimate, and a PSA 9 around $53.82.
It is a Rare, and it shows up about once every 33 Secret Wonders packs.
Kouki Saitou drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Secret Wonders booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.