AbilitySleep Pendulum
Once during your turn (before your attack), you may flip a coin. If heads, the Defending Pokémon is now Asleep. This power can't be used if Hypno is affected by a Special Condition.

HeartGold & SoulSilver is a set in the HeartGold & SoulSilver series. It was released on February 10, 2010. The printed size is 123. This checklist is longer, at 124 cards. Hypno is 23/123, in position 23 of 124 on this checklist. Before it is 22 Granbull, and after it is 24 Lapras. The listed rarity is Rare.
Hypno is a Stage 1 Psychic Pokémon with 90 HP. In the Pokédex this is Hypno (#097), generation 1 (Kanto). The card says it evolves from Drowzee. In this catalog that name is Drowzee (#096).
Masakazu Fukuda illustrated this card. The same name is on 471 other cards in the catalog.
Hypno (#097) has 23 other cards in the catalog. Those other cards are in 20 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Hypno 8/62 in Fossil (1999). Both list 90 HP. The rarity there is Rare Holo, and here it is Rare. Ken Sugimori illustrated that card, and Masakazu Fukuda illustrated this one. 17 other cards of Hypno list a different HP.
Sleep Pendulum is listed as Poké-Power. Once during your turn (before your attack), you may flip a coin. If heads, the Defending Pokémon is now Asleep. This power can't be used if Hypno is affected by a Special Condition. The attack Psychic Shot lists 30 damage. The cost is Psychic, Colorless, Colorless. Does 10 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) Weakness is Psychic ×2. Retreat cost is 2. The flavor text reads "Always holding a pendulum that it swings at a steady rhythm, it causes drowsiness in anyone nearby."
I keep a set binder for HeartGold & SoulSilver, meant to hold every card of that set. This card is one slot in the HeartGold & SoulSilver set binder. A generation binder holds one card of each species. Hypno can fill a slot in Generation 1 binder (Kanto). I still need this card.
Once during your turn (before your attack), you may flip a coin. If heads, the Defending Pokémon is now Asleep. This power can't be used if Hypno is affected by a Special Condition.
Does 10 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
Always holding a pendulum that it swings at a steady rhythm, it causes drowsiness in anyone nearby.
HeartGold & SoulSilver, in the HeartGold & SoulSilver series. It was released on February 10, 2010. The printed size is 123.
23/123. It is entry 23 of 124 in this checklist.
Masakazu Fukuda. The catalog lists 471 other cards with that illustrator.
Rare.
Hypno #097, generation 1 (Kanto).
Psychic Shot (30).