56level cap
Beating them gives you Calm Mind & Waterfall.
This is around Cave of Origin and Mossdeep — Tate & Liza (Lv 56 cap) in the story — that page lists everything you can have caught by this point.
Types on this team: Space ×5Psychic ×2CatDanceFairyFreakFutureGuysMarioSteel
| Pokémon | Moves | |
|---|---|---|
 | Clefable Lv 52 · Unaware The sheet gives the gym's theme as "Space type". | Starstrike Helping Hand Psychic Metronome |
 | Espeon Lv 53 · Synchronize | Starstrike Helping Hand Psychic Calm Mind |
 | Beheeyem Lv 54 · Telepathy | Starstrike Psychic Depravity Calm Mind |
| Luma Lv 55 · Friend Guard | Starstrike Dazzling Gleam Goomba Stomp Heal Bell | |
 | Metagross Lv 56 · Clear Body (Tough Claws after Mega Evolving) · Metagrossite | Limb Launch Flash Cannon Meteor Mash Broin' Out |