The Stasis Field is used by carriers or Alien Hives. In combat once enemy ships enter, it will slow their rotation, strafing and forward speed.
The only Vsec ship that had the stasis field is the Valkyrie Carrier found in the VSec Supply Run crafting fleets. The Valkyrie carrier players have use the phased support field. The only Alien ships that have the stasis field is the Cluster Missile variant of Alien Hives and the Alien Harvesters.
Variants of Alien Hives
Variants of Alien Harvesters