AbilityAero Trail
When you play this Pokémon from your hand onto your Bench during your turn, you may move any number of Lightning Energy from your other Pokémon to this Pokémon. If you do, switch this Pokémon with your Active Pokémon.

Tapu Koko is Pokédex #785, generation 7 (Alola). Tapu Koko-GX is a Basic GX Lightning Pokémon with 170 HP.
Tapu Koko-GX sits at SM33/248 in SM Black Star Promos, position 34 of 251. Before it is SM32 Tapu Bulu-GX, and after it is SM34 Bewear-GX. The set belongs to the Sun & Moon series. It was released on February 3, 2017. The printed size is 248. This checklist is longer, at 251 cards. The listed rarity is Promo.
Aero Trail is listed as Ability. When you play this Pokémon from your hand onto your Bench during your turn, you may move any number of Lightning Energy from your other Pokémon to this Pokémon. If you do, switch this Pokémon with your Active Pokémon. The attack Sky-High Claws lists 130 damage. The cost is Lightning, Lightning, Colorless. Tapu Thunder-GX is another attack lists 50× damage. The cost is Lightning, Lightning, Colorless. This attack does 50 damage times the amount of Energy attached to all of your opponent's Pokémon. (You can't use more than 1 GX attack in a game.) Retreat cost is 2. The card text says: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Tapu Koko (#785) has 23 other cards in the catalog. Those other cards are in 13 sets. The other printings with a release date run from 2017 to 2026. The earliest other card is Tapu Koko SM30/248 in SM Black Star Promos (2017). That card is named Tapu Koko, while this one is Tapu Koko-GX. That card lists 110 HP, and this one lists 170 HP. Both list the rarity Promo. kirisAki illustrated that card, and 5ban Graphics illustrated this one. 18 other cards of Tapu Koko list a different HP.
The illustrator line reads 5ban Graphics. I count 1,629 other cards in the catalog with that illustrator.
SM Black Star Promos set binder is where a full SM Black Star Promos set goes. This card fills one slot there. A generation binder holds one card of each species. Tapu Koko can fill a slot in Generation 7 binder (Alola). Themed lists that include this exact card are Island guardians. I still need this card.
When you play this Pokémon from your hand onto your Bench during your turn, you may move any number of Lightning Energy from your other Pokémon to this Pokémon. If you do, switch this Pokémon with your Active Pokémon.
This attack does 50 damage times the amount of Energy attached to all of your opponent's 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.
SM Black Star Promos, in the Sun & Moon series. It was released on February 3, 2017. The printed size is 248.
SM33/248. It is entry 34 of 251 in this checklist.
5ban Graphics. The catalog lists 1,629 other cards with that illustrator.
Promo.
Tapu Koko #785, generation 7 (Alola).
Sky-High Claws (130) and Tapu Thunder-GX (50×).