AttackThrash
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.

Nidoking is Pokédex #034, generation 1 (Kanto). Nidoking is a Stage 2 Grass Pokémon with 90 HP. The card lists level 23. The card says it evolves from Nidorino. In this catalog that name is Nidorino (#033).
Nidoking sits at 11/102 in Base, position 11 of 102. Before it is 10 Mewtwo, and after it is 12 Ninetales. The set belongs to the Base series. It was released on 9 January 1999. The printed size is 102, and the checklist is the same length. The listed rarity is Rare Holo.
The attack Thrash lists 30+ damage. The cost is Grass, Colorless, Colorless. 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. Toxic is another attack lists 20 damage. The cost is Grass, Grass, Grass. 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). Weakness is Psychic ×2. Retreat cost is 3. The flavor text reads "Uses its powerful tail in battle to smash, constrict, then break its prey's bones."
Nidoking (#034) has 21 other cards in the catalog. Those other cards are in 15 sets. The other printings with a release date run from 2000 to 2025. The earliest other card is Nidoking 11/130 in Base Set 2 (2000). Both list 90 HP. Both list the rarity Rare Holo. 19 other cards of Nidoking list a different HP.
The illustrator line reads Ken Sugimori. I count 1,112 other cards in the catalog with that illustrator.
Base set binder is where a full Base set goes. This card fills one slot there. A generation binder holds one card of each species. Nidoking can fill a slot in Generation 1 binder (Kanto). I still need this card.
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.
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.
Base, in the Base series. It was released on 9 January 1999. The printed size is 102.
11/102. It is entry 11 of 102 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Rare Holo.
Nidoking #034, generation 1 (Kanto).
Thrash (30+) and Toxic (20).