Used in:

• Planestriders Hauberk ()
• Scaled Avatar's Hauberk ()
• Stanos' Wicked Breastplate ()

Dropped by:

• Bastion of Thunder
• Brynju Thunderclap (44%, 0.5 avg drops per kill)
• Tower of Solusek Ro
• Arlyxir (44%, 0.5 avg drops per kill)
• Drunder, the Fortress of Zek
• The Diaku Overseer (24%)