AttackPoison Spray
The Defending Pokémon is now Poisoned.

Arbok is Pokédex #024, generation 1 (Kanto). Arbok is a Stage 1 Grass Pokémon with 70 HP. The card says it evolves from Ekans. In this catalog that name is Ekans (#023).
Arbok sits at 35/165 in Expedition Base Set, position 35 of 165. Before it is 34 Ampharos, and after it is 36 Blastoise. The set belongs to the E-Card series. It was released on September 15, 2002. The printed size is 165, and the checklist is the same length. The listed rarity is Rare.
The attack Poison Spray lists no damage number. The cost is Grass. The Defending Pokémon is now Poisoned. Poison Reaction is another attack lists 20+ damage. The cost is Colorless, Colorless. If the Defending Pokémon is Poisoned, this attack does 20 damage plus 20 more damage. Weakness is Psychic ×2. Retreat cost is 1.
Arbok (#024) has 19 other cards in the catalog. Those other cards are in 16 sets. The other printings with a release date run from 1999 to 2025. The earliest other card is Arbok 31/62 in Fossil (1999). That card lists 60 HP, and this one lists 70 HP. The rarity there is Uncommon, and here it is Rare. Ken Sugimori illustrated that card, and Kyoko Umemoto illustrated this one. Retreat cost there is 2, and here it is 1. 17 other cards of Arbok list a different HP.
The illustrator line reads Kyoko Umemoto. I count 174 other cards in the catalog with that illustrator.
Expedition Base Set set binder is where a full Expedition Base Set set goes. This card fills one slot there. A generation binder holds one card of each species. Arbok can fill a slot in Generation 1 binder (Kanto). I still need this card.
The Defending Pokémon is now Poisoned.
If the Defending Pokémon is Poisoned, this attack does 20 damage plus 20 more damage.
Expedition Base Set, in the E-Card series. It was released on September 15, 2002. The printed size is 165.
35/165. It is entry 35 of 165 in this checklist.
Kyoko Umemoto. The catalog lists 174 other cards with that illustrator.
Rare.
Arbok #024, generation 1 (Kanto).
Poison Spray and Poison Reaction (20+).