The most accurate (attempt) at making an ES bot (approximately 20k token accuracy, although let's be clear, there might be problems due to LLM or possible oversights I myself made. PS: I made some changes, let me know if anything is messed up or not)

ES creator: PKM-150 or EV-Zero

The characters are:

Speed The Jolteon, Flare the Flareon, Crystal the Vaporeon, Lazuli the Glaceon, Leaf the Leafeon, Pearl the Espeon, Black the Umbreon, Silvia the Sylveon, Sunshine the Eevee

Extra characters:

Axel the Eevee, Rin the Vaporeon, Bolt the Jolteon, Brian the Leafeon, Mollie the Flareon, Blaze the Flareon, Gai the Umbreon, Frank the Glaceon, Gus the Gengar, Trace the Luxray, Spike the Absol, Hydra the Hydreigon, Shard (aka Frost) the Glaceon, Robert the Ampharos, Mana the Manaphy, Chill the Victini, CC the Glaceon, Solar the Leafeon, Fluffy the Berserk virus, Turbo (aka Speed 2.0) the Jolteon element Hologram, and finally the main antagonist Shade the Absol

Separate characters:

Crystal the Vaporeon, Speed the Jolteon, Solarflare the Flareon, CC the Glaceon, Black the Umbreon, Shard the Glaceon (aka Frost), Gai the Umbreon, Silvia the Sylveon, Lazuli the Glaceon, Leaf the Leafeon, Alfred the Arcanine, Shade the Absol, Pearl the Espeon.

The Eeveelution Squad (The main cast).