AbilityShadow Connection
As often as you like during your turn (before your attack), you may move a basic Darkness Energy from 1 of your Pokémon to another of your Pokémon.

Weavile is Pokédex #461, generation 4 (Sinnoh). Weavile-GX is a Stage 1 GX Darkness Pokémon with 200 HP. The card says it evolves from Sneasel. In this catalog that name is Sneasel (#215).
Weavile-GX sits at 132/236 in Unified Minds, position 133 of 261. Before it is 131 Sneasel, and after it is 133 Sableye. The set belongs to the Sun & Moon series. It was released on 2 August 2019. The printed size is 236. This checklist is longer, at 261 cards. The listed rarity is Rare Holo GX.
Shadow Connection is listed as Ability. As often as you like during your turn (before your attack), you may move a basic Darkness Energy from 1 of your Pokémon to another of your Pokémon. The attack Claw Slash lists 130 damage. The cost is Darkness, Darkness, Colorless. Nocturnal Maneuvers-GX is another attack lists no damage number. The cost is Colorless. Search your deck for any number of Basic Pokémon and put them onto your Bench. Then, shuffle your deck. (You can't use more than 1 GX attack in a game.) Weakness is Fighting ×2. Resistance is Psychic -20. Retreat cost is 1. The card text says: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Weavile (#461) has 20 other cards in the catalog. Those other cards are in 18 sets. The other printings with a release date run from 2007 to 2026. The earliest other card is Weavile 40/130 in Diamond & Pearl (2007). That card is named Weavile, while this one is Weavile-GX. That card lists 80 HP, and this one lists 200 HP. The rarity there is Rare, and here it is Rare Holo GX. Naoyo Kimura illustrated that card, and aky CG Works illustrated this one. 20 other cards of Weavile list a different HP.
The illustrator line reads aky CG Works. I count 163 other cards in the catalog with that illustrator.
Unified Minds set binder is where a full Unified Minds set goes. This card fills one slot there. A generation binder holds one card of each species. Weavile can fill a slot in Generation 4 binder (Sinnoh). I still need this card.
As often as you like during your turn (before your attack), you may move a basic Darkness Energy from 1 of your Pokémon to another of your Pokémon.
Search your deck for any number of Basic Pokémon and put them onto your Bench. Then, shuffle your deck. (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.
Unified Minds, in the Sun & Moon series. It was released on 2 August 2019. The printed size is 236.
132/236. It is entry 133 of 261 in this checklist.
aky CG Works. The catalog lists 163 other cards with that illustrator.
Rare Holo GX.
Weavile #461, generation 4 (Sinnoh).
Claw Slash (130) and Nocturnal Maneuvers-GX.