The Stasis Projector is an upgrade for the Basilisk. It allows the Basilisk to place a field that essentially pauses all units inside it-they cannot move or attack but are rendered invulnerable until the field dissipates (about 10 seconds). The projector has a cooldown of approximately 20 seconds.
Strategically, the field has three uses. first, the field can be used to stop pursuit from "heavy killer" units, such as Titans, Refractors, etc. Second, the field can be used to protect a friendly force while the Basilisk(s) eliminate opposition from long range. Third, the field is useful for stopping a group of enemies long enough to set up a strike from a support power or superweapon.