AttackMischief
Shuffle your opponent's deck.

Team Rocket is a set in the Base series. It was released on April 24, 2000. The printed size is 82. This checklist is longer, at 83 cards. Mankey is 61/82, in position 61 of 83 on this checklist. Before it is 60 Magnemite, and after it is 62 Meowth. The listed rarity is Common.
Mankey is a Basic Fighting Pokémon with 40 HP. The card lists level 14. In the Pokédex this is Mankey (#056), generation 1 (Kanto). The card lists Primeape, Primeape (#057) under evolves to.
Sumiyoshi Kizuki illustrated this card. The same name is on 212 other cards in the catalog.
Mankey (#056) has 26 other cards in the catalog. Those other cards are in 24 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Mankey 55/64 in Jungle (1999). That card lists 30 HP, and this one lists 40 HP. Both list the rarity Common. Kagemaru Himeno illustrated that card, and Sumiyoshi Kizuki illustrated this one. 21 other cards of Mankey list a different HP.
The attack Mischief lists no damage number. The cost is Colorless. Shuffle your opponent's deck. Anger is another attack lists 20+ damage. The cost is Fighting, Colorless. Flip a coin. If heads, this attack does 20 damage plus 20 more damage; if tails, this attack does 20 damage. Weakness is Psychic ×2. The flavor text reads "Normally friendly, it quickly becomes angry if it doesn't get what it wants."
I keep a set binder for Team Rocket, meant to hold every card of that set. This card is one slot in the Team Rocket set binder. A generation binder holds one card of each species. Mankey can fill a slot in Generation 1 binder (Kanto). I still need this card.
Shuffle your opponent's deck.
Flip a coin. If heads, this attack does 20 damage plus 20 more damage; if tails, this attack does 20 damage.
Normally friendly, it quickly becomes angry if it doesn't get what it wants.
Team Rocket, in the Base series. It was released on April 24, 2000. The printed size is 82.
61/82. It is entry 61 of 83 in this checklist.
Sumiyoshi Kizuki. The catalog lists 212 other cards with that illustrator.
Common.
Mankey #056, generation 1 (Kanto).
Mischief and Anger (20+).