After losing a Battle, the losing player must assign Damage equal to half their army’s Natural Strength (not including Sacrificed Units) to Units in that army (rounded up).
Each Unit may be assigned Damage up to its individual Natural Strength.
Note: If a Unit is assigned even 1 Damage, it is destroyed and returned to the player’s supply.
Any surviving Units from the losing army are returned to the Courtyard or a Region with a friendly Tower.