AbilityPhantom Winds
Once during your turn (before your attack), if this Pokémon is on your Bench, you may shuffle it and all cards attached to it into your deck.

Suicune is Pokédex #245, generation 2 (Johto). Suicune-GX is a Basic GX Water Pokémon with 180 HP.
Suicune-GX sits at 220/214 in Lost Thunder, position 224 of 240. Before it is 219 Blacephalon-GX, and after it is 221 Zeraora-GX. The set belongs to the Sun & Moon series. It was released on November 2, 2018. The printed size is 214. This checklist is longer, at 240 cards. The collector number is above the printed set size of 214. The listed rarity is Rare Rainbow.
Phantom Winds is listed as Ability. Once during your turn (before your attack), if this Pokémon is on your Bench, you may shuffle it and all cards attached to it into your deck. The attack Cure Stream lists 120 damage. The cost is Water, Water, Colorless. During your opponent's next turn, the Defending Pokémon's attacks do 30 less damage (before applying Weakness and Resistance). Brinicles-GX is another attack lists 150 damage. The cost is Water, Water, Colorless. Switch this Pokémon with 1 of your Benched Pokémon. (You can't use more than 1 GX attack in a game.) Weakness is Grass ×2. Retreat cost is 2. The card text says: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Suicune (#245) has 30 other cards in the catalog. Those other cards are in 22 sets. The other printings with a release date run from 1999 to 2025. The earliest other card is Suicune 53/53 in Wizards Black Star Promos (1999). That card is named Suicune, while this one is Suicune-GX. That card lists 70 HP, and this one lists 180 HP. The rarity there is Promo, and here it is Rare Rainbow. Atsuko Nishida illustrated that card, and 5ban Graphics illustrated this one. Retreat cost there is 1, and here it is 2. 28 other cards of Suicune list a different HP.
The illustrator line reads 5ban Graphics. I count 1,629 other cards in the catalog with that illustrator.
Lost Thunder set binder is where a full Lost Thunder set goes. This card fills one slot there. A generation binder holds one card of each species. Suicune can fill a slot in Generation 2 binder (Johto). Themed lists that include this exact card are Legendary beasts. I still need this card.
Once during your turn (before your attack), if this Pokémon is on your Bench, you may shuffle it and all cards attached to it into your deck.
During your opponent's next turn, the Defending Pokémon's attacks do 30 less damage (before applying Weakness and Resistance).
Switch this Pokémon with 1 of your Benched Pokémon. (You can't use more than 1 GX attack in a game.)
Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Lost Thunder, in the Sun & Moon series. It was released on November 2, 2018. The printed size is 214.
220/214. It is entry 224 of 240 in this checklist.
5ban Graphics. The catalog lists 1,629 other cards with that illustrator.
Rare Rainbow.
Suicune #245, generation 2 (Johto).
Cure Stream (120) and Brinicles-GX (150).