Flail

Acquisition
Skill Trainers:
 * Zendeht (Gate of Torment)

Hero Skill Trainers:
 * Hoju (Gate of Torment)

Signet of Capture:
 * Nightfall
 * Onwan, Lord of the Ntouka (Arkjok Ward)
 * Churrta the Rock (Jahai Bluffs, not during Eavesdropping)
 * Eye of the North
 * Gordam Griefgiver (Charr Homelands, during Against the Charr)
 * Jormungand (Bjora Marches, Drakkar Lake, Varajar Fells)

Trivia

 * This is the only IAS stance that is charged by adrenaline.

Related articles

 * Adrenaline skills quick reference
 * Attack speed skills quick reference
 * Movement speed skills quick reference
 * Stance skills quick reference