AttackPoison Sludge
Flip a coin. If heads, the Defending Pokémon is now Poisoned.

Aquapolis is a set in the E-Card series. It was released on January 15, 2003. The printed size is 147. This checklist is longer, at 182 cards. Grimer is 79/147, in position 79 of 182 on this checklist. Before it is 78 Goldeen, and after it is 80 Growlithe. The listed rarity is Common.
Grimer is a Basic Grass Pokémon with 50 HP. In the Pokédex this is Grimer (#088), generation 1 (Kanto). The card lists Muk, Muk (#089) under evolves to.
Keiji Kinebuchi illustrated this card. The same name is on 212 other cards in the catalog.
Grimer (#088) has 24 other cards in the catalog. Those other cards are in 23 sets. The other printings with a release date run from 1999 to 2025. The earliest other card is Grimer 48/62 in Fossil (1999). Both list 50 HP. Both list the rarity Common. Mitsuhiro Arita illustrated that card, and Keiji Kinebuchi illustrated this one. 19 other cards of Grimer list a different HP.
The attack Poison Sludge lists no damage number. The cost is Colorless. Flip a coin. If heads, the Defending Pokémon is now Poisoned. Weakness is Psychic ×2. Retreat cost is 1.
I keep a set binder for Aquapolis, meant to hold every card of that set. This card is one slot in the Aquapolis set binder. A generation binder holds one card of each species. Grimer can fill a slot in Generation 1 binder (Kanto). I still need this card.
Flip a coin. If heads, the Defending Pokémon is now Poisoned.
Aquapolis, in the E-Card series. It was released on January 15, 2003. The printed size is 147.
79/147. It is entry 79 of 182 in this checklist.
Keiji Kinebuchi. The catalog lists 212 other cards with that illustrator.
Common.
Grimer #088, generation 1 (Kanto).
Poison Sludge.