AttackSwallow Up
Before doing damage, count the remaining HP of the Defending Pokémon and Dark Arbok. If the Defending Pokémon has fewer remaining HP than Dark Arbok's, this attack does 10 damage plus 30 more damage.

Team Rocket Returns is a set in the EX series. It was released on November 1, 2004. The printed size is 109. This checklist is longer, at 111 cards. Dark Arbok is 29/109, in position 29 of 111 on this checklist. Before it is 28 Yanma, and after it is 30 Dark Ariados. The listed rarity is Uncommon.
Dark Arbok is a Stage 1 Grass Darkness Pokémon with 90 HP. In the Pokédex this is Arbok (#024), generation 1 (Kanto). The card says it evolves from Ekans. In this catalog that name is Ekans (#023).
Nakaoka illustrated this card. The same name is on 46 other cards in the catalog.
Arbok (#024) has 19 other cards in the catalog. Those other cards are in 15 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 is named Arbok, while this one is Dark Arbok. That card lists 60 HP, and this one lists 90 HP. Both list the rarity Uncommon. Ken Sugimori illustrated that card, and Nakaoka illustrated this one. Retreat cost there is 2, and here it is 1. 17 other cards of Arbok list a different HP.
The attack Swallow Up lists 10+ damage. The cost is Grass. Before doing damage, count the remaining HP of the Defending Pokémon and Dark Arbok. If the Defending Pokémon has fewer remaining HP than Dark Arbok's, this attack does 10 damage plus 30 more damage. Extra Poison is another attack lists 30 damage. The cost is Colorless, Colorless. If the Defending Pokémon is Pokémon-ex, the Defending Pokémon is now Asleep and Poisoned. Weakness is Psychic ×2. Retreat cost is 1. The card text says: This Pokémon is both Grass Darkness type.
I keep a set binder for Team Rocket Returns, meant to hold every card of that set. This card is one slot in the Team Rocket Returns set binder. A generation binder holds one card of each species. Arbok can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Team Rocket cards. I still need this card.
Before doing damage, count the remaining HP of the Defending Pokémon and Dark Arbok. If the Defending Pokémon has fewer remaining HP than Dark Arbok's, this attack does 10 damage plus 30 more damage.
If the Defending Pokémon is Pokémon-ex, the Defending Pokémon is now Asleep and Poisoned.
This Pokémon is both Grass Darkness type.
Team Rocket Returns, in the EX series. It was released on November 1, 2004. The printed size is 109.
29/109. It is entry 29 of 111 in this checklist.
Nakaoka. The catalog lists 46 other cards with that illustrator.
Uncommon.
Arbok #024, generation 1 (Kanto).
Swallow Up (10+) and Extra Poison (30).