AttackBonemerang
Flip 2 coins. This attack does 30 damage times the number of heads.

Marowak is Pokédex #105, generation 1 (Kanto). Marowak is a Stage 1 Fighting Pokémon with 60 HP. The card lists level 26. The card says it evolves from Cubone. In this catalog that name is Cubone (#104).
Marowak sits at 52/130 in Base Set 2, position 52 of 130. Before it is 51 Magmar, and after it is 53 Nidorina. The set belongs to the Base series. It was released on February 24, 2000. The printed size is 130, and the checklist is the same length. The listed rarity is Uncommon.
The attack Bonemerang lists 30× damage. The cost is Fighting, Fighting. Flip 2 coins. This attack does 30 damage times the number of heads. Call for Friend is another attack lists no damage number. The cost is Fighting, Fighting, Colorless. Search your deck for a Fighting Basic Pokémon card and put it onto your Bench. Shuffle your deck afterward. (You can't use this attack if your Bench is full.) Weakness is Grass ×2. Resistance is Lightning -30. Retreat cost is 1. The flavor text reads "The bone it holds is its key weapon. It throws the bone skillfully like a boomerang to K.O. targets."
Marowak (#105) has 21 other cards in the catalog. Those other cards are in 20 sets. The other printings with a release date run from 1999 to 2025. The earliest other card is Marowak 39/64 in Jungle (1999). Both list 60 HP. Both list the rarity Uncommon. 20 other cards of Marowak list a different HP.
The illustrator line reads Mitsuhiro Arita. I count 721 other cards in the catalog with that illustrator.
Base Set 2 set binder is where a full Base Set 2 set goes. This card fills one slot there. A generation binder holds one card of each species. Marowak can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Mitsuhiro Arita cards. I still need this card.
Flip 2 coins. This attack does 30 damage times the number of heads.
Search your deck for a Fighting Basic Pokémon card and put it onto your Bench. Shuffle your deck afterward. (You can't use this attack if your Bench is full.)
The bone it holds is its key weapon. It throws the bone skillfully like a boomerang to K.O. targets.
Base Set 2, in the Base series. It was released on February 24, 2000. The printed size is 130.
52/130. It is entry 52 of 130 in this checklist.
Mitsuhiro Arita. The catalog lists 721 other cards with that illustrator.
Uncommon.
Marowak #105, generation 1 (Kanto).
Bonemerang (30×) and Call for Friend.