AttackRepeating Kick
Flip a coin until you get tails. This attack does 20 damage times the number of heads.

Wizards Black Star Promos is a set in the Base series. It was released on July 1, 1999. The printed size is 53, and the checklist is the same length. Hitmontop is 37/53, in position 37 of 53 on this checklist. Before it is 36 Igglybuff, and after it is 38 Unown [J]. The listed rarity is Promo.
Hitmontop is a Basic Fighting Pokémon with 60 HP. The card lists level 29. In the Pokédex this is Hitmontop (#237), generation 2 (Johto).
Atsuko Nishida illustrated this card. The same name is on 408 other cards in the catalog.
Hitmontop (#237) has 14 other cards in the catalog. Those other cards are in 12 sets. The other printings with a release date run from 2001 to 2026. The earliest other card is Hitmontop 3/75 in Neo Discovery (2001). Both list 60 HP. The rarity there is Rare Holo, and here it is Promo. Sumiyoshi Kizuki illustrated that card, and Atsuko Nishida illustrated this one. 9 other cards of Hitmontop list a different HP.
The attack Repeating Kick lists 20× damage. The cost is Fighting, Fighting. Flip a coin until you get tails. This attack does 20 damage times the number of heads. Rapid Spin is another attack lists 30 damage. The cost is Fighting, Fighting, Colorless. If your opponent has any Benched Pokémon, he or she chooses 1 of them and switches it with his or her Active Pokémon, then, if you have any Benched Pokémon, you switch 1 of them with your Active Pokémon. (Do the damage before switching the Pokémon.) Weakness is Psychic ×2. Retreat cost is 1. The flavor text reads "It launches kicks while spinning. If it spins at high speed, it may bore its way into the ground."
I keep a set binder for Wizards Black Star Promos, meant to hold every card of that set. This card is one slot in the Wizards Black Star Promos set binder. A generation binder holds one card of each species. Hitmontop can fill a slot in Generation 2 binder (Johto). I still need this card.
Flip a coin until you get tails. This attack does 20 damage times the number of heads.
If your opponent has any Benched Pokémon, he or she chooses 1 of them and switches it with his or her Active Pokémon, then, if you have any Benched Pokémon, you switch 1 of them with your Active Pokémon. (Do the damage before switching the Pokémon.)
It launches kicks while spinning. If it spins at high speed, it may bore its way into the ground.
Wizards Black Star Promos, in the Base series. It was released on July 1, 1999. The printed size is 53.
37/53. It is entry 37 of 53 in this checklist.
Atsuko Nishida. The catalog lists 408 other cards with that illustrator.
Promo.
Hitmontop #237, generation 2 (Johto).
Repeating Kick (20×) and Rapid Spin (30).