Dismember

If it hits, this axe blow will inflict a Deep Wound on the target foe, lowering that foe's maximum Health by 20% for 5...17 seconds.

Acquisition
Skill Quests: Skill Trainers: Signet of Capture:
 * Army Life (Piken Square)
 * Captain Osric (Yak's Bend)
 * Dakk (Ember Light Camp)
 * Galrath