Navi Squad's Base (Japanese: チーム・シーのアジトTeam Tsih's Base) is one of five Team Star bases. It is located within Tagtree Thicket and is home to Team Star's Poison Squad. The Poison Squad's leader is Atticus. Trainers who defeat him receive the Poison Badge.
As with all other Team Star bases, Cassiopeia delivered a declaration of attack on Navi Squad's Base under the player's name prior to their arrival at the base. As a result, a young student—Atticus's friend—attempts to stop the player from infiltrating the base. After entering the base, the Team Star members inside will begin a Star Barrage, sending out various Poison-type Pokémon. The player must Auto Battle with the first three Pokémon in their party. The player can heal their Pokémon by talking to Clive or interacting with vending machines scattered across the base. Defeating 30 Pokémon in 10 minutes will allow the player to confront Atticus.
After completing ★ Starfall Street ★, the player can initiate a Star Barrage rematch by ringing the bell at the gate. The new objective requires the player to defeat 50 Pokémon in 10 minutes, and Atticus will reward the player with LP upon completion. Additionally, once a day, Atticus will offer to rematch the player.