A Spider Venom Sac

Butcherblock Mountains3 sources

• a giant spider
• a large spider
• Commonlands

Dreadlands1 source

• a dread widow

Eastern Plains of Karana1 source

• a crag spider

Everfrost Peaks2 sources

• a giant wooly spider
• a large wooly spider

Field of Bone2 sources

• a bonebinder
• bonecrawler

Firiona Vie4 sources

• a drachnid silklurker
• a drachnid silkspinner
• a drachnid silkstrander
• a drachnid weblurker

Kaesora2 sources

• Briarweb Spider
• strathbone healer

Lesser Faydark0 sources

The source identifies this zone but does not name a specific NPC.

Lower Guk1 source

• a deadly black widow

Nagafen's Lair1 source

• lava duct crawler

Nektulos Forest1 source

• a large arachneidae

Northern Desert of Ro2 sources

• a desert tarantula
• a dune tarantula

Southern Desert of Ro0 sources

The source identifies this zone but does not name a specific NPC.

Toxxulia Forest1 source

• a large widow

Upper Guk2 sources

• a heart spider
• a large heart spider