From Final Fantasy XIV A Realm Reborn Wiki
Rook Autoturret is an action unlocked by questing at level 40. It's available for Machinist.“
Deploys a single-target battle turret which attacks using Volley Fire, dealing damage with a potency of 80.
- Battery Gauge Cost: 50
- Duration increases as Battery Gauge exceeds required cost at time of deployment, up to a maximum of 15 seconds.
- Consumes Battery Gauge upon execution.
- Shuts down when time expires or upon execution of Rook Overdrive.
- Shares a recast timer with Rook Overdrive.
— In-game description