AttackStrange Powder
Flip a coin. If heads, the Defending Pokémon is now Confused. If tails, the Defending Pokémon is now Asleep.

Gloom is Pokédex #044, generation 1 (Kanto). Gloom is a Stage 1 Grass Pokémon with 60 HP. The card lists level 26. The card says it evolves from Oddish. In this catalog that name is Oddish (#043). The card lists Vileplume, Vileplume (#045) and Bellossom, Bellossom (#182) under evolves to.
Gloom sits at 36/111 in Neo Genesis, position 36 of 111. Before it is 35 Furret, and after it is 37 Granbull. The set belongs to the Neo series. It was released on December 16, 2000. The printed size is 111, and the checklist is the same length. The listed rarity is Uncommon.
The attack Strange Powder lists 20 damage. The cost is Grass, Colorless. Flip a coin. If heads, the Defending Pokémon is now Confused. If tails, the Defending Pokémon is now Asleep. Sticky Nectar is another attack lists 20+ damage. The cost is Grass, Grass, Colorless. Flip a coin. If heads, this attack does 20 damage plus 10 more damage and, until the end of your next turn, as long as Gloom is your Active Pokémon, the Defending Pokémon can't retreat, and if the effect of an attack, Pokémon Power, or Trainer card would change that player's Active Pokémon, that part of the effect does nothing. If tails, this attack does 20 damage. Weakness is Fire ×2. Retreat cost is 1. The flavor text reads "What appears to be drool is actually sweet honey. It is very sticky and clings stubbornly if touched."
Gloom (#044) has 25 other cards in the catalog. Those other cards are in 22 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Gloom 37/64 in Jungle (1999). Both list 60 HP. Both list the rarity Uncommon. Keiji Kinebuchi illustrated that card, and Mitsuhiro Arita illustrated this one. 23 other cards of Gloom list a different HP.
The illustrator line reads Mitsuhiro Arita. I count 721 other cards in the catalog with that illustrator.
Neo Genesis set binder is where a full Neo Genesis set goes. This card fills one slot there. A generation binder holds one card of each species. Gloom 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 a coin. If heads, the Defending Pokémon is now Confused. If tails, the Defending Pokémon is now Asleep.
Flip a coin. If heads, this attack does 20 damage plus 10 more damage and, until the end of your next turn, as long as Gloom is your Active Pokémon, the Defending Pokémon can't retreat, and if the effect of an attack, Pokémon Power, or Trainer card would change that player's Active Pokémon, that part of the effect does nothing. If tails, this attack does 20 damage.
What appears to be drool is actually sweet honey. It is very sticky and clings stubbornly if touched.
Neo Genesis, in the Neo series. It was released on December 16, 2000. The printed size is 111.
36/111. It is entry 36 of 111 in this checklist.
Mitsuhiro Arita. The catalog lists 721 other cards with that illustrator.
Uncommon.
Gloom #044, generation 1 (Kanto).
Strange Powder (20) and Sticky Nectar (20+).