Dali Horses is a unique technology in Age of Empires IV released in Season Nine update 12.0.1974, available to Zhu Xi's Legacy. It can be researched at the Blacksmith starting in the Feudal Age and increases the attack speed of all cavalry by 20%.
The technology researches 150% faster when the Blacksmith is supervised by an Imperial Official. This can be improved to 300% faster after researching Regional Inspection.
