Work in Progress: The Knights Templar and House of Lancaster civilizations aren't fully updated and miss stats, abilities and upgrades.
Explorer will continue to be updated over the next few weeks for both old and new civs.
Raiding Technology

Stone Bounty (Improved)

Mongols
Add +75 Stone to the raid income for igniting a building. If Stone Bounty has already been researched, add +25 Stone to the raid income for igniting a building.
Available in the Imperial Age (IV)

Researched at

Costs
100
225
325
0:45

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