Dropped by (***no spawn table):

• The Paludal Caverns
• a mud burrower (51%, 0.6 avg drops per kill)
• Shadeweaver's Thicket
• Jynhadar (4%, 0.04 avg drops per kill)
• a firefall guardian (2.8%)
• a firefall caller (2.6%)
• a firefall seer (0.82%)