AbilityTransparency
Whenever an attack does anything to Haunter, flip a coin. If heads, prevent all effects of that attack, including damage, done to Haunter. This power stops working while Haunter 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. Haunter is 21/62, in position 21 of 62 on this checklist. Before it is 20 Gengar, and after it is 22 Hitmonlee. The listed rarity is Rare.
Haunter is a Stage 1 Psychic Pokémon with 50 HP. The card lists level 17. In the Pokédex this is Haunter (#093), generation 1 (Kanto). The card says it evolves from Gastly. In this catalog that name is Gastly (#092). The card lists Gengar, Gengar (#094) under evolves to.
Ken Sugimori illustrated this card. The same name is on 1,112 other cards in the catalog.
Haunter (#093) has 30 other cards in the catalog. Those other cards are in 29 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Haunter 29/102 in Base (1999). That card lists 60 HP, and this one lists 50 HP. The rarity there is Uncommon, and here it is Rare. Keiji Kinebuchi illustrated that card, and Ken Sugimori illustrated this one. 26 other cards of Haunter list a different HP.
Transparency is listed as Pokémon Power. Whenever an attack does anything to Haunter, flip a coin. If heads, prevent all effects of that attack, including damage, done to Haunter. This power stops working while Haunter is Asleep, Confused, or Paralyzed. The attack Nightmare lists 10 damage. The cost is Psychic, Colorless. The Defending Pokémon is now Asleep. Resistance is Fighting -30. The flavor text reads "Because of its ability to slip through block walls, it is said to be from another dimension."
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. Haunter 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.
Whenever an attack does anything to Haunter, flip a coin. If heads, prevent all effects of that attack, including damage, done to Haunter. This power stops working while Haunter is Asleep, Confused, or Paralyzed.
The Defending Pokémon is now Asleep.
Because of its ability to slip through block walls, it is said to be from another dimension.
Fossil, in the Base series. It was released on 10 October 1999. The printed size is 62.
21/62. It is entry 21 of 62 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Rare.
Haunter #093, generation 1 (Kanto).
Nightmare (10).