Ability ⇢ Shadow Connection
As often as you like during your turn (before your attack), you may move a basic {D} Energy from 1 of your Pokémon to another of your Pokémon.

{D}{D}{C} → Claw Slash : 130

{C} → Nocturnal Maneuvers-GX
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.)