"You want to be blue?"

The Espurr bounces! If one looks really closely, they might see the corners of his mouth twitch very slightly upward.

"Then I will see to it that you can grow up to be blue."

The Espurr claps!

"Settled on Saeyung for the name, or want to explore more possibilities?"

"There are more seas. The Atyon might make a better name now that I think of it. Do you like 'Atyon'?"

The Espurr bounces AND claps!

"All right then, Atyon it is."

Atyon nods seriously.

"And there is now some kind of initiation process where I learn how to do a Pokémon battle?"

"That's the idea! Scallion and Atyon against my Gastly and Porygon?"

"I don't see why not, though perhaps you can tell me something about the process first?"

"Battles in the Unova League, as in most major Leagues, are turn-based! You call out attacks—our Pokemon have all been taught the standard names for their moves, there's a database of such names in the Pokedex app—and the Pokemon perform them one at a time. You'll want to have the Pokedex app up while you battle; it lets you check the types of Pokemon and moves, and the amount of battle experience each of your Pokemon has accumulated."

Will it, if he pulls it up, also magically tell him what moves his Pokémon know?

Yes!

Scallion knows Tackle (Normal-type damaging move), Growl (lowers opponent's attack), Quick Attack (Normal-type, damaging, hits first), and Wing Attack (Flying-type, damaging).

Atyon knows Scratch (Normal-type, damaging), Leer (lower's opponent's defense), Covet (Normal-type, damaging, steals an item), and Confusion (Psychic-type, damaging, can inflict confusion).

"What does 'hits first' mean if they're taking turns?"

"In each turn, each Pokemon gets a chance to attack; they attack in order of their speed."

"Huh. Anything else I need to know?"

"Hmmmmmmmm...much like the best time to nickname Pokemon is when you get them, the best time to teach them the standard names of attacks is when they learn them. Usually they learn new attacks when they level up—Pokemon battle experience comes in discrete increments, usually measured in 'points' and 'levels' tracked by the Pokedex app. The app can also provide a guide to which types of Pokemon are susceptible, resistant, or immune to which types of move; experienced Trainers tend to memorize these. Switching which Pokemon you have on the field or using an item on them uses a turn just like a move. Pokemon are out of the battle when knocked out, and can be restored to health afterwards at a Pokemon Center."

"Is that very distressing to them when they're knocked out?" he asks, checking the susceptibility/resistance/immunity feature.

"A little distressing, but less so than never being allowed to fight would be? It only becomes a serious problem if they're losing every battle you send them into."

He nods. ...does the magical psychic power mean that he can use Ibyabekan military gestures to get Atyon on the side that is not directly opposite the Gastly, he's starting to get a little hoarse from this long conversation.

Atyon does so!

He also sends Kyeo a series of mental images: Kyeo making the same gesture at Scallion and Scallion standing there confused, then Atyon staring intently at Scallion and vibrating a little, then Kyeo making the same gesture at Scallion and Scallion taking the same position.

Thank you, Atyon, for conveying what the gesture means to Scallion, though in fact he is presently satisfied with Scallion's position on the field.

"All right! Now we call out moves to each of our Pokemon—if it's an offensive move you need to also specify a target, you can do so by pointing—and when all four have their instructions, one of us calls 'Go!' and they move."