The stars are calling.
― In-game description

Mark of the Exodus is a legendary Titan mark. It can be purchased from Arach Jalaal. While equipped, any Vanguard or Crucible reputation gains will be applied to Dead Orbit.


Mark of the Exodus can be retrieved from one of the following activities/vendors:

Dead Orbit source icon Dead Orbit
Arach Jalaal of the Dead Orbit faction sometimes sells this item in the Tower.