You can’t Empower and Chill on the same nights tho.
How about buffing reaper in this sense and making chill and empower darkness the same ability? You chill your target and can empower reap that target on that night. If this is too much of a buff, make it require 3 souls possibly, but impossible to be occupied. This also gives room for a new day ability, possibly costing 1 soul, to edit logs of a person that you have reaped the previous night.