Age of Empires II: Definitive Edition · Monastery technology
Redemption
Redemption allows Monks to convert all siege units and most buildings.
How it works
Redemption is listed as a Monastery technology costing 475 gold and taking 50 seconds to research. The stated effect is that Monks can convert all siege units and most buildings. The source distinguishes all siege units from most buildings but does not identify which buildings are excluded or state an Age or civilization restriction.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.