AbilityTwilight Eyes
When you play this Pokémon from your hand to evolve 1 of your Pokémon during your turn, you may discard an Energy attached to your opponent's Active Pokémon.

Team Up is a set in the Sun & Moon series. It was released on February 1, 2019. The printed size is 181. This checklist is longer, at 198 cards. Lycanroc-GX is 82/181, in position 82 of 198 on this checklist. Before it is 81 Pancham, and after it is 83 Alolan Grimer. The listed rarity is Rare Holo GX.
Lycanroc-GX is a Stage 1 GX Fighting Pokémon with 200 HP. In the Pokédex this is Lycanroc (#745), generation 7 (Alola). The card says it evolves from Rockruff. In this catalog that name is Rockruff (#744).
5ban Graphics illustrated this card. The same name is on 1,629 other cards in the catalog.
Lycanroc (#745) has 31 other cards in the catalog. Those other cards are in 17 sets. The other printings with a release date run from 2017 to 2026. The earliest other card is Lycanroc-GX SM14/248 in SM Black Star Promos (2017). Both list 200 HP. The rarity there is Promo, and here it is Rare Holo GX. Retreat cost there is 1, and here it is 2. 20 other cards of Lycanroc list a different HP.
Twilight Eyes is listed as Ability. When you play this Pokémon from your hand to evolve 1 of your Pokémon during your turn, you may discard an Energy attached to your opponent's Active Pokémon. The attack Accelerock lists 120 damage. The cost is Fighting, Colorless, Colorless. Splintered Shards-GX is another attack lists 30× damage. The cost is Fighting. This attack does 30 damage for each Energy card in your opponent's discard pile. (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.
I keep a set binder for Team Up, meant to hold every card of that set. This card is one slot in the Team Up set binder. A generation binder holds one card of each species. Lycanroc can fill a slot in Generation 7 binder (Alola). I still need this card.
When you play this Pokémon from your hand to evolve 1 of your Pokémon during your turn, you may discard an Energy attached to your opponent's Active Pokémon.
This attack does 30 damage for each Energy card in your opponent's discard pile. (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.
Team Up, in the Sun & Moon series. It was released on February 1, 2019. The printed size is 181.
82/181. It is entry 82 of 198 in this checklist.
5ban Graphics. The catalog lists 1,629 other cards with that illustrator.
Rare Holo GX.
Lycanroc #745, generation 7 (Alola).
Accelerock (120) and Splintered Shards-GX (30×).