Liza (twin sister)
Tate and his twin sister, Liza, are the gym leaders of Mossdeep City. Their badge is the Mind Badge. They are considered the seventh gym of Hoenn. Tate and Liza are secretly guardians of Mt. Pyre; even the other gym leaders are unaware of this duty, though the Hoenn Director is aware.
Liza and Tate, and their Pokémon, sense an evil presence approaching Mt. Pyre and go to protect the Red and Blue Jewels in Mt. Pyre. They find two sinister figures with Slugmas and challenge them to a double battle.
- Sabrina, Liza, Lucian, and Caitlin also train psychic-type Pokémon
- Tate and Liza are the only gym leaders who use a double battle (or a tag team)