Ditto is Pokédex #132, generation 1 (Kanto). Ditto is a Basic Psychic Pokémon with 60 HP.
Ditto sits at 38/113 in Delta Species, position 38 of 114. Before it is 37 Ditto, and after it is 39 Ditto. The set belongs to the EX series. It was released on 31 October 2005. The printed size is 113. This checklist is longer, at 114 cards. The listed rarity is Uncommon.
Duplicate is listed as Poké-Power. Once during your turn (before your attack), you may search your deck for another Ditto and switch it with Ditto. (Any cards attached to Ditto, damage counters, Special Conditions, and effects on it are now on the new Pokémon.) If you do, put Ditto on top of your deck. Shuffle your deck afterward. You can't use more than 1 Duplicate Poké-Power each turn. The attack Copy lists no damage number. The cost is Colorless. Choose 1 of the Defending Pokémon's attacks. Copy copies that attack. This attack does nothing if Ditto doesn't have the Energy necessary to use that attack. (You must still do anything else required for that attack.) Ditto performs that attack. Weakness is Psychic ×2. Retreat cost is 1.
Ditto (#132) has 31 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 Ditto 3/62 in Fossil (1999). That card lists 50 HP, and this one lists 60 HP. The rarity there is Rare Holo, and here it is Uncommon. Keiji Kinebuchi illustrated that card, and Yuka Morii illustrated this one. 16 other cards of Ditto list a different HP.
The illustrator line reads Yuka Morii. I count 204 other cards in the catalog with that illustrator.
Delta Species set binder is where a full Delta Species set goes. This card fills one slot there. A generation binder holds one card of each species. Ditto can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Yuka Morii clay cards. I still need this card.