AbilityCurse
Once during your turn (before your attack), you may move 1 damage counter from 1 of your opponent's Pokémon to another (even if it would Knock Out the other Pokémon). This power can't be used if Gengar is Asleep, Confused, or Paralyzed.

Fossil is a set in the Base series. It was released on 10 October 1999. The printed size is 62, and the checklist is the same length. Gengar is 5/62, in position 5 of 62 on this checklist. Before it is 4 Dragonite, and after it is 6 Haunter. The listed rarity is Rare Holo.
Gengar is a Stage 2 Psychic Pokémon with 80 HP. The card lists level 38. In the Pokédex this is Gengar (#094), generation 1 (Kanto). The card says it evolves from Haunter. In this catalog that name is Haunter (#093).
Keiji Kinebuchi illustrated this card. The same name is on 212 other cards in the catalog.
Gengar (#094) has 52 other cards in the catalog. Those other cards are in 35 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Gengar 20/62 in Fossil (1999). Both list 80 HP. The rarity there is Rare, and here it is Rare Holo. 49 other cards of Gengar list a different HP.
Curse is listed as Pokémon Power. Once during your turn (before your attack), you may move 1 damage counter from 1 of your opponent's Pokémon to another (even if it would Knock Out the other Pokémon). This power can't be used if Gengar is Asleep, Confused, or Paralyzed. The attack Dark Mind lists 30 damage. The cost is Psychic, Psychic, Psychic. If your opponent has any Benched Pokémon, choose 1 of them and this attack does 10 damage to it. (Don't apply Weakness and Resistance for Benched Pokémon.) Resistance is Fighting -30. Retreat cost is 1. The flavor text reads "Under a full moon, this Pokémon likes to mimic the shadows of people and laugh at their fright."
I keep a set binder for Fossil, meant to hold every card of that set. This card is one slot in the Fossil set binder. A generation binder holds one card of each species. Gengar can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Gengar and the Gastly line. I still need this card.
Once during your turn (before your attack), you may move 1 damage counter from 1 of your opponent's Pokémon to another (even if it would Knock Out the other Pokémon). This power can't be used if Gengar is Asleep, Confused, or Paralyzed.
If your opponent has any Benched Pokémon, choose 1 of them and this attack does 10 damage to it. (Don't apply Weakness and Resistance for Benched Pokémon.)
Under a full moon, this Pokémon likes to mimic the shadows of people and laugh at their fright.
Fossil, in the Base series. It was released on 10 October 1999. The printed size is 62.
5/62. It is entry 5 of 62 in this checklist.
Keiji Kinebuchi. The catalog lists 212 other cards with that illustrator.
Rare Holo.
Gengar #094, generation 1 (Kanto).
Dark Mind (30).