The term E.G.O. is used for manifesting another’s own self. Humans have always had this innate ability to manifest their own E.G.O. but such a feat is incredibly rare and not known.
As such, this is coined as an E.G.O. Manifestation. Though it may be rare to manifest for humans, this is not the case for being known as ‘Abnormalities’. Abnormalities will be a common enemy you fight in Emotional Turbulence, and defeating them allows you to use their E.G.O.
USING E.G.O.
As you use these abilities of an E.G.O. born from an Abnormality, it will naturally have an effect on your Sanity. When using the E.G.O. of an Abnormality, you will roll Sanity.
If you SUCCEED the threshold, you will use something called E.G.O. Awakening where you will be able to wear the E.G.O. and use its abilities for a limited time. The E.G.O. may have a slight effect on your psyche and ideals (roleplay-wise) but rest assured it is still you in control.
However, if you FAIL the threshold, you will suffer from E.G.O. Corrosion where the source of the E.G.O. will overwrite your own being and attack completely indiscriminately. Though your attack will be stronger, it will also focus on a specific requirement to target someone during E.G.O. Corrosion.
Forced Corrosion Change
Originally, people could automatically fail the save if they so desired. But this has been changed so that automatically failing the save is no longer permitted.
HOWEVER. you can now opt to make an indiscriminate attack no longer indiscriminate. By spending half the sanity dose of the original cost (so a 4 sanity E.G.O. becomes a 6 sanity E.G.O. for a corrosion that doesn’t target allies).
Sidenote: killing an enemy while wielding an E.G.O. does NOT give you any sanity back. Especially after Corrosion.