The Segin Squad's base (Japanese: チーム・セギンのアジトTeam Segin's Base) is one of five Team Star bases. It is located within West Province (Area One) and is home to Team Star's Dark Squad. The Dark Squad's leader is Giacomo. Trainers who defeat him receive the Dark Badge.
As with all other Team Star bases, Cassiopeia delivered a declaration of attack on the Segin Squad's base under the player's name prior to their arrival at the base. As a result, a Team Star Grunt 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 Dark-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 Giacomo.
After completing ★ Starfall Street ★, the player can initiate a Star Barrage rematch by ringing the bell at one of the gates. The new objective requires the player to defeat 50 Pokémon in 10 minutes, and Giacomo will reward the player with LP upon completion. Additionally, once a day, Giacomo will offer to rematch the player.
Segin Squad's Base appeared in PASV04 as the first Team Star base that Violet and Arven raided. After successfully defeating 30 Pokémon within 10 minutes, Violet was allowed to challenge Giacomo. While Violet's Fuecoco was quickly defeated, his Nymble succeeded in knocking out Giacomo's Pawniard, forcing him to resort to using the Segin Starmobile. Thanks to the Tera Orb he had received from Clive shortly beforehand, Violet was able to Terastallize his Nymble and defeat the Starmobile.