This special hunt cannot steal more blood than the target has. It can target a vampire with no blood. If no blood is stolen, the hunt is unsuccessful, even if the action stays successful.
Steal blood as a Hunt action
Rulings
The blood stolen by this special hunt goes to the blood bank if it cannot be gained by the vampire.
This special hunt must be directed at a vampire, even if none has any blood. It cannot be performed if there are no other vampires.
Is affected by Hunt value. All blood that is gained from the Hunt is taken from the target minion. (Festivo dello Estinto is not blood gained from the hunt)