Bloodwrath

Bloodwrath is the state in which a creature (male or female, warrior or not) is possessed by an unstoppable rage and desire to kill and harm, 
Primarily, it affects badgers, but other beings have been victims as well. It does not matter whether the creatures around the beast in the state of bloodwrath are friend or foe, the affected creature will kill them either way with no way of telling who they kill. 
The only creatures known to be able to control it were Nathaniel Danisham and Firinne Searc, they both taught High Rhulain Tiria Wildlough. 
Appears in: 
Blackrudder's Prophecy
The Cat's Revenge
Claymore and Talons
A Tale of Two Rogues
I advise you to stay away from a beast in bloodwrath, or you will get seriously harmed or worse.
Category:The Quean and the Rhulain