In Age of Empires II, Heresy is a monastery technology researched at the Monastery. Units converted by an enemy Monk die instead of changing to the enemy's color.
Plan Heresy in the Upgrade Codex →
Effect Units converted by an enemy Monk die instead of changing to the enemy's color.
Cost
⏱ 60s Where to research Researched at the Monastery.
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1000 gold⏱ 60s