AttackSleight of Hand
Choose up to 3 cards from your hand and put them on top of your deck. Then search your deck for that many basic Energy cards. Show those cards to your opponent, then put them into your hand. Shuffle your deck afterward.

Gym Heroes is a set in the Gym series. It was released on 14 August 2000. The printed size is 132, and the checklist is the same length. Sabrina's Mr. Mime is 94/132, in position 94 of 132 on this checklist. Before it is 93 Sabrina's Gastly, and after it is 95 Sabrina's Slowpoke. The listed rarity is Common.
Sabrina's Mr. Mime is a Basic Psychic Pokémon with 50 HP. The card lists level 20. In the Pokédex this is Mr. Mime (#122), generation 1 (Kanto).
Ken Sugimori illustrated this card. The same name is on 1,112 other cards in the catalog.
Mr. Mime (#122) has 34 other cards in the catalog. Those other cards are in 28 sets. The other printings with a release date run from 1999 to 2025. The earliest other card is Mr. Mime 6/64 in Jungle (1999). That card is named Mr. Mime, while this one is Sabrina's Mr. Mime. That card lists 40 HP, and this one lists 50 HP. The rarity there is Rare Holo, and here it is Common. 33 other cards of Mr. Mime list a different HP.
The attack Sleight of Hand lists no damage number. The cost is Colorless. Choose up to 3 cards from your hand and put them on top of your deck. Then search your deck for that many basic Energy cards. Show those cards to your opponent, then put them into your hand. Shuffle your deck afterward. Slap is another attack lists 20 damage. The cost is Psychic, Colorless. Weakness is Psychic ×2. Retreat cost is 1.
I keep a set binder for Gym Heroes, meant to hold every card of that set. This card is one slot in the Gym Heroes set binder. A generation binder holds one card of each species. Mr. Mime can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Trainer's Pokémon, Kanto Gym Leaders and their Pokémon, and Sabrina and her Pokémon. I still need this card.
Choose up to 3 cards from your hand and put them on top of your deck. Then search your deck for that many basic Energy cards. Show those cards to your opponent, then put them into your hand. Shuffle your deck afterward.
Gym Heroes, in the Gym series. It was released on 14 August 2000. The printed size is 132.
94/132. It is entry 94 of 132 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Common.
Mr. Mime #122, generation 1 (Kanto).
Sleight of Hand and Slap (20).