[Belphe nearly loses it at 'Galwantula', managing to internalize it to a twitch of the corner of her mouth to accompany the thoughtful noise she makes]

The gyms in Johto may not give you much trouble. ...though if you also hope to conquer the gyms in Kanto, Erika will be difficult. From what I've read, she favors grass types.

[She hasn't had much to do aside from research the badges that should belong to her by now if her traveling partner weren't making her wait until he caught up.]

A dratini might be helpful...