【Construction Officer】
Player can appoint two heroes as the construction officer at most. The officer can be 100% effective，and the adjutant can be 30% effective. The adjutant will unlock when you reach friendly.
When there are two heroes in this position，it will activate effect that lv.19-30 buildings’s upgrading time（h）and Prestige Badge Consumption for upgrading buildings.
Precondition is these two heroes has this attribute.
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Game Guide for Clash of Kings