Given Oricorios retreat cost is only one energy anyway, this lets you retreat Oricorio for free at the start of your turn, hit with Tapu Koko, then Volt Switch back to Oricorio for your opponents turn
Tournament organizers, grading companies, and accessory manufacturers all rely on these standards to maintain consistency across millions of cards
Of course, it doesnt really work that way, you have to exile seven cards from your graveyard to do that, but who cares
They have a personality, backstory, thoughts, and depth beyond what players are normally given
With it, players choose up to two Benched Pokmon and attach a Basic Energy card from their discard pile to each of them
Since you cant share cards between the two (owning the physical card doesnt give you a free digital copy), there are benefits to sticking to one medium but which one