AbilityRestart
Once during your turn, you may draw cards until you have 3 cards in your hand.

Mew is Pokédex #151, generation 1 (Kanto). Mew ex is a Basic ex Psychic Pokémon with 180 HP.
Mew ex sits at 205/165 in 151, position 205 of 207. Before it is 204 Giovanni's Charisma, and after it is 206 Switch. The set belongs to the Scarlet & Violet series. It was released on September 22, 2023. The printed size is 165. This checklist is longer, at 207 cards. The collector number is above the printed set size of 165. The listed rarity is Hyper Rare.
Restart is listed as Ability. Once during your turn, you may draw cards until you have 3 cards in your hand. The attack Genome Hacking lists no damage number. The cost is Colorless, Colorless, Colorless. Choose 1 of your opponent's Active Pokémon's attacks and use it as this attack. Weakness is Darkness ×2. Resistance is Fighting -30. The card text says: Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards. The regulation mark is G.
Mew (#151) has 60 other cards in the catalog. Those other cards are in 35 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Mew 8/53 in Wizards Black Star Promos (1999). That card is named Mew, while this one is Mew ex. That card lists 50 HP, and this one lists 180 HP. The rarity there is Promo, and here it is Hyper Rare. Ken Sugimori illustrated that card, and aky CG Works illustrated this one. 50 other cards of Mew list a different HP.
The illustrator line reads aky CG Works. I count 163 other cards in the catalog with that illustrator.
151 set binder is where a full 151 set goes. This card fills one slot there. A generation binder holds one card of each species. Mew can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Mew and Mewtwo, Mythical Pokémon, from Sword & Shield on, and Pink Pokémon. I still need this card.
Once during your turn, you may draw cards until you have 3 cards in your hand.
Choose 1 of your opponent's Active Pokémon's attacks and use it as this attack.
Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.
151, in the Scarlet & Violet series. It was released on September 22, 2023. The printed size is 165.
205/165. It is entry 205 of 207 in this checklist.
aky CG Works. The catalog lists 163 other cards with that illustrator.
Hyper Rare.
Mew #151, generation 1 (Kanto).
G.
Genome Hacking.