Onslaught Essence

So I started reading recently (listening, but whatever) and naturally did the whole "What Essences would you get" thing. Might, Swift, Potence, which makes Onslaught. Unfortunately all I can find about the Onslaught Essence is that Rufus says it is good for humans and is very aggressive.

So my questions are:

1. Is there any listed or recommended abilities for Onslaught that are listed somewhere?

2. What kind of abilities do you think Onslaught would have?

Personally, I do think for a NON special attack, some sort of pursuit power would be good and an Aura ability might make enemies vulnerable to attacks or empower allies. Even a perception power to see weaknesses (shatterpoints?) would be cool.