Like all other Gyms in Paldea, the Levincia Gym building itself is simply used for registering Gym challengers. The Gym Test and Gym battle are both conducted outside the building, within Levincia.
Gym Test
The Levincia Gym Test has the player star in Iono's livestream, alongside Director Clavell. The main event of the Gym Test is titled "Where in Levincia Is Mr. Walksabout?" by Iono, and requires the player to identify where Clavell is in various frameshots of Levincia. This event has three rounds; between each round, Iono sends out one of her fans to challenge the player to a battle.
Levincia Gym in the animeLevincia Gym's battlefield in the anime
The Levincia Gym appeared in HZ050. After registering for her Terastal Training battle against Iono at the Gym building, Dot made it to the battlefield in the central square of Levincia. Knowing that her Quaxly was at a type disadvantage against Iono's Bellibolt, Dot did his best to dodge its attacks. During the battle, one of Bellibolt's Electric attacks accidentally caused a blackout for the lghts and cameras around the battlefield, cutting off Iono's livestream of the battle. Dot chose this moment to Terastallize Quaxly, throwing Iono off. However, even though Quaxly subsequently learned Liquidation, once the light and the cameras turned back on, Iono regained control of the battle, Terastallizing her Bellibolt and winning the match. Despite this, she still declared that Dot had passed the test. After the battle, Liko, Roy, and Dot met up with Clavell at the Gym building.
There is unused data for two additional Levincia Gym Trainers; Alonso, who would use a level 22 Pincurchin, and Diego, who would use a level 22 Magnemite and a level 22 Dedenne.