Primal Rage

Description
For 10 seconds, all of your attacks have an additional 10...46% chance of being critical hits and have 20% armor penetration. Primal Rage disables all skills for 10 seconds.

Acquisition
Signet of Capture:
 * Strongroot Tanglebranch (Morostav Trail)
 * Reefclaw Ragebound (Gyala Hatchery (Explorable))

Trivia

 * This skill is most likely a reference to the arcade beat-em-up "Primal Rage"