The Dark Crew Base can be found in West Province (Area One).

How to Reach the Dark Crew Base

The Dark Crew Base can be reached by going northwest from Cortondo until you reach the bridge over the river, and go northeast from there until you reach the barricade.

Defeat the Guard at Segin Squad's Base

The Team Star Grunt has a level 19 Murkrow. You get 988 Pokédollars for winning.

After the battle, there will be a cutscene.

Enter Segin Squad's Base

If you have defeated the other four bosses of Team Star already, be aware that after you defeat the fifth boss of Team Star, the Academy entrance will be blocked by a Pokémon trainer with high level pokémon.

When you're ready, go to the door of the base and ring the bell. However, you can only bring the first three Pokémon in your party.

About the Star Barrage

Team Star's fighting style is called the Star Barrage. You need to press R to send out multiple Pokémon at a time. You can go back to Clive to heal up your Pokémon. You can also use vending machines to help recover your Pokémons' HP, if you find one. You need to defeat 30 of Team Star's Pokémon within 10 minutes to make Team Star's boss come out to battle you. If you need to exit the challenge early, press Y.

During the countdown, move through the base and approach Team Star Grunts to make them send out their Pokémon. Face the enemy Pokémon and press R to send out your Pokémon against them. Your Pokémon will automatically battle them. They will do better if their type is supereffective against the enemy Pokémon's type. You can press ZR to recall your Pokémon back to you if needed.

Defeat Giacomo, Boss of Team Star's Dark Crew

After your Pokémon defeat 30 of the enemy's Pokémon, Giacomo will challenge you to a regular battle, where you can use the six Pokémon in your party.

Giacomo has a level 21 Pawniard, followed by a level 20 Dark-type Revavroom (the Segin Starmobile).

Afterward, there will be a cutscene where you learn more about Team Star.

You get Team Star's Dark Crew Badge, and TM062 Foul Play. (Press A if nothing is happening.) You'll also get some LP, and more TMs will be unlocked in the TM Machine. You will also receive Pokémon materials that you can use to make TMs.

Explore the Base

After this, you can freely explore the Dark Crew Base, where you will find a Dark Tera Shard, and a TM122 Encore.

If you want to play the Star Barrage again, you can ring the bell at the front gate of the base.