AbilityRestoration
Once during your turn (before your attack), if this Pokémon is in your discard pile, you may put it onto your Bench. Then, attach a Darkness Energy card from your discard pile to this Pokémon.

Darkrai is Pokédex #491, generation 4 (Sinnoh). Darkrai-GX is a Basic GX Darkness Pokémon with 180 HP.
Darkrai-GX sits at 88a/147 in Burning Shadows, position 91 of 177. Before it is 88 Darkrai-GX, and after it is 89 Inkay. The set belongs to the Sun & Moon series. It was released on August 5, 2017. The printed size is 147. This checklist is longer, at 177 cards. The listed rarity is Rare Holo GX.
Restoration is listed as Ability. Once during your turn (before your attack), if this Pokémon is in your discard pile, you may put it onto your Bench. Then, attach a Darkness Energy card from your discard pile to this Pokémon. The attack Dark Cleave lists 130 damage. The cost is Darkness, Darkness, Colorless. This attack's damage isn't affected by Resistance. Dead End-GX is another attack lists no damage number. The cost is Darkness, Darkness, Colorless. If your opponent's Active Pokémon is affected by a Special Condition, that Pokémon is Knocked Out. (You can't use more than 1 GX attack in a game.) Weakness is Fighting ×2. Resistance is Psychic -20. Retreat cost is 2. The card text says: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Darkrai (#491) has 40 other cards in the catalog. Those other cards are in 23 sets. The other printings with a release date run from 2007 to 2026. The earliest other card is Darkrai LV.X DP19/56 in DP Black Star Promos (2007). That card is named Darkrai LV.X, while this one is Darkrai-GX. That card lists 100 HP, and this one lists 180 HP. The rarity there is Promo, and here it is Rare Holo GX. Shizurow illustrated that card, and PLANETA illustrated this one. Retreat cost there is 1, and here it is 2. 30 other cards of Darkrai list a different HP.
The illustrator line reads PLANETA. I count 47 other cards in the catalog with that illustrator.
Burning Shadows set binder is where a full Burning Shadows set goes. This card fills one slot there. A generation binder holds one card of each species. Darkrai can fill a slot in Generation 4 binder (Sinnoh). I still need this card.
Once during your turn (before your attack), if this Pokémon is in your discard pile, you may put it onto your Bench. Then, attach a Darkness Energy card from your discard pile to this Pokémon.
This attack's damage isn't affected by Resistance.
If your opponent's Active Pokémon is affected by a Special Condition, that Pokémon is Knocked Out. (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.
Burning Shadows, in the Sun & Moon series. It was released on August 5, 2017. The printed size is 147.
88a/147. It is entry 91 of 177 in this checklist.
PLANETA. The catalog lists 47 other cards with that illustrator.
Rare Holo GX.
Darkrai #491, generation 4 (Sinnoh).
Dark Cleave (130) and Dead End-GX.