AbilitySearch the Premises
Once during your turn (before your attack), you may have your opponent reveal their hand.

Gumshoos is Pokédex #735, generation 7 (Alola). Gumshoos-GX is a Stage 1 GX Colorless Pokémon with 210 HP. The card says it evolves from Yungoos. In this catalog that name is Yungoos (#734).
Gumshoos-GX sits at 157/149 in Sun & Moon, position 158 of 173. Before it is 156 Tauros-GX, and after it is 158 Nest Ball. The set belongs to the Sun & Moon series. It was released on 3 February 2017. The printed size is 149. This checklist is longer, at 173 cards. The collector number is above the printed set size of 149. The listed rarity is Rare Rainbow.
Search the Premises is listed as Ability. Once during your turn (before your attack), you may have your opponent reveal their hand. The attack Headbutt Bounce lists 100 damage. The cost is Colorless, Colorless, Colorless. Gumshoe Chance-GX is another attack lists 10+ damage. The cost is Colorless. This attack does 50 damage times the amount of Energy attached to your opponent's Active Pokémon. (You can't use more than 1 GX attack in a game.) Weakness is Fighting ×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.
Gumshoos (#735) has 9 other cards in the catalog. Those other cards are in 7 sets. The other printings with a release date run from 2017 to 2025. The earliest other card is Gumshoos-GX 110/149 in Sun & Moon (2017). Both list 210 HP. The rarity there is Rare Holo GX, and here it is Rare Rainbow. 7 other cards of Gumshoos list a different HP.
The illustrator line reads 5ban Graphics. I count 1,629 other cards in the catalog with that illustrator.
Sun & Moon set binder is where a full Sun & Moon set goes. This card fills one slot there. A generation binder holds one card of each species. Gumshoos can fill a slot in Generation 7 binder (Alola). I still need this card.
Once during your turn (before your attack), you may have your opponent reveal their hand.
This attack does 50 damage times the amount of Energy attached to your opponent's Active 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.
Sun & Moon, in the Sun & Moon series. It was released on 3 February 2017. The printed size is 149.
157/149. It is entry 158 of 173 in this checklist.
5ban Graphics. The catalog lists 1,629 other cards with that illustrator.
Rare Rainbow.
Gumshoos #735, generation 7 (Alola).
Headbutt Bounce (100) and Gumshoe Chance-GX (10+).