This trigger fires when I don't have any more viable targets.
The following object references are explicitly available for this trigger:
The following arguments are set for this trigger. If an argument is marked as "In" then a value will be passed in to the trigger, if an argument is marked as "Out" then it can be set to a value to affect Sphere's behaviour:
No arguments are set for this trigger.
The following return values are explicitly defined for this trigger:
No return values allowed for this trigger.