Venom Sacs

Venom sacs are a Goblin upgrade available to Spiderlings and Spider Riders, after being researched at a Spider Pit (level 3).

v·d·e

Units
Heroes	Gorkil the Goblin King • Drogoth • Shelob • Azog of Moria (RotWK) • Mini Hero Horde: Fire Drake brood
Infantry	Builder • Goblin Warriors • Goblin Archers • Spiderlings • Goblin Spider Riders • Half-Troll Marauders • Cave Troll • Mountain Giant • Fire Drake • Half-Troll Swordsmen (RotWK)
Seige
Other

Structures
Production	Fortress • Goblin Cave • Spider Pit • Fissure
Support	Tunnel • Lumber Mill • Treasure Trove
Defenses	Sentry Tower
Fortress add-ons	Bat Cloud • Razor Spines • Fire Arrows • Web Cocoon • Dragon's Nest
Upgrades	Fire Arrows • Banner Carrier • Spider Holes • Burrows • Arrow Den • Giant Sentry • Venom Sacs

Other
Misc.
Support powers	War Chant • Tainted Land • Cave Bats • Summon Wildmen of Dunland • Scavenger • Untamed Allegiance • Summon Spiderling Allies • Awaken Wyrm • Darkness • Summon Watcher • Summon Dragon • Summon Balrog

Items in italics are exclusive to expansion