Board Thread:Question and Answer/@comment-189.62.85.181-20140916213117/@comment-74.240.158.77-20140916223823

That would be the FAW's servant skill that activated. When you use a skill (I've only seen it activate with AoEs), the servant has the chance to cancel it.

It was introduced last event, but was taken out due to some bugs. Now it's back with a vengence!