Essence of the Reaper
By consuming the essence of the Reaper, you gain several boons:
Reaper Form: Transform into a Reaper, a techno-organic construct created from countless sapient lifeforms by a rebellious AI seeking to maintain balance in the universe.
Harbinger-Level Power: Attain power and knowledge on par with Harbinger regarding Reaper technology and all aspects related to the Ezo.
Indoctrinated Army: Your body houses an entire army of indoctrinated lifeforms, such as Collectors or troops from the Reaper War, at your discretion.
Indoctrination Influence: Like all Reapers, you possess the ability to influence the thoughts and actions of others through indoctrination.
Immunity to Control: You cannot be controlled, synthesized, or destroyed by the Crucible or Citadel unless you choose to allow it. You are immune to any "color" endings.
Setting Insertion: Optionally, you may be inserted into the Mass Effect setting at any point between the creation of the Star Child and the Reaper War itself.