You can get her until the end of the month
Iono is coming to Pokémon Masters EX later this month, it’s been announced via a new trailer on the game’s official YouTube channel. You can check it out for yourself above to see what she’ll look (and sound) like in game.
Iono & Bellibolt will be available from January 11th at 10 PM PST to January 31st at 9:59 PM PST. If you want to pull her for yourself, there’s not much time, so good luck!