In Judgement Rock there is a Tyrian Protector who walks around
When you talk to her she tells you to watch out for the bugs.
If you select the Ferocity option you can immediatly chat to her again and select the same option.
You can repeat the process over and over and will get ferocity each time.
I did it 5 times and was everytime i got ferocity, but when i tp’ed away and back the mob did not bug and repeat the question.