Since there's a special event going on in Dauntless this week, I've been grinding a lot of umbral escalations over the weekend, so I've been toying with a new build to get through solo escalation as fast as possible, and this is the build I've come up with.
Berserker, Predator, Rage, Wild Frenzy and Discipline are all just to create a stupid amount of Attack power.
Energized and Evasion is there to make sure that you can continually spam: Special (repeaters dance) followed by two light attacks during the invulnerability frames.
The Conditioning is simply there because I couldn't find a way to build in anything more useful. And an added benefit, you'll basically have fully regenerated your stamina after a single attack cycle (special, attack, attack).