Ensconced

[vis] +1 stealth action. Put this card on a location and unlock this vampire. While this vampire is ready, their controller can burn this card during a action against the attached location to have the action fail, and the acting minion and this vampire enter combat.
[VIS] Only usable during a (D) action against any location. This vampire unlocks, the action fails, and the acting minion and this vampire enter combat.