When there is a Revenant, a banishment will take place on all odd days.
Details
The Revenant may choose to resign at any point during a phase, but will only lose the role at the end of the phase.
If there is no Revenant and a ghost election occurs, a Revenant is elected.
The Revenant gains an additional secret channel, which is reused for any subsequent Revenants.
The first night after being elected, the Revenant cannot be banished.