The Strix emits an ear-splitting screech, rendering victims unable to think or move and greatly assisting in a subsequent feeding attempt.
Dice Pool: Power + Finesse vs. victim’s Stamina + Composure
If successful, the victim is stunned: She loses her next action, and has only half her Defense until her next action. If the Strix gains an exceptional success, or successfully uses this power twice on the same victim in a scene, the victim is immobilized.
I used this against my players during combat, I was effectively able to immobilize all of them (or could have should I have chosen to), the problem I encountered is that Immobilize appears to have no end. Also unlike the description of the Immobilized tilt (which seems to not be in VtR2, but is in GMC) this is not a physical restraint.
How could my players have resolved this? Or what would bring it to an end? Suggestions on house rulings are welcome if no RAW exists.