AttackShakedown
Choose a card from your opponent's hand without looking and discard it.

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 Houndoom is 5/109, in position 5 of 111 on this checklist. Before it is 4 Dark Electrode, and after it is 6 Dark Hypno. The listed rarity is Rare Holo.
Dark Houndoom is a Stage 1 Fire Darkness Pokémon with 70 HP. In the Pokédex this is Houndoom (#229), generation 2 (Johto). The card says it evolves from Houndour. In this catalog that name is Houndour (#228).
Mitsuhiro Arita illustrated this card. The same name is on 721 other cards in the catalog.
Houndoom (#229) has 44 other cards in the catalog. Those other cards are in 30 sets. The other printings with a release date run from 2001 to 2025. The earliest other card is Houndoom 4/75 in Neo Discovery (2001). That card is named Houndoom, while this one is Dark Houndoom. Both list 70 HP. Both list the rarity Rare Holo. Shin-ichi Yoshida illustrated that card, and Mitsuhiro Arita illustrated this one. 32 other cards of Houndoom list a different HP.
The attack Shakedown lists 20 damage. The cost is Darkness, Colorless. Choose a card from your opponent's hand without looking and discard it. Dark Fire is another attack lists 40+ damage. The cost is Fire, Colorless, Colorless. You may discard a Fire Energy or Darkness Energy attached to Dark Houndoom. If you do, this attack does 40 damage plus 20 more damage. Weakness is Fighting ×2. Resistance is Psychic -30. Retreat cost is 1. The card text says: This Pokémon is both Fire 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. Houndoom can fill a slot in Generation 2 binder (Johto). Themed lists that include this exact card are Mitsuhiro Arita cards and Team Rocket cards. I still need this card.
Choose a card from your opponent's hand without looking and discard it.
You may discard a Fire Energy or Darkness Energy attached to Dark Houndoom. If you do, this attack does 40 damage plus 20 more damage.
This Pokémon is both Fire Darkness type.
Team Rocket Returns, in the EX series. It was released on November 1, 2004. The printed size is 109.
5/109. It is entry 5 of 111 in this checklist.
Mitsuhiro Arita. The catalog lists 721 other cards with that illustrator.
Rare Holo.
Houndoom #229, generation 2 (Johto).
Shakedown (20) and Dark Fire (40+).