In-game Description (Abilities)
The psyker gains the 
Inscribed Soul ability. It costs no AP but deals direct damage to the psyker equal to 25% of the psyker’s maximum wounds.
The next psychic power used after this ability will not trigger psychic phenomena or perils of the warp and will not degrade the veil.
Screenshot (Ability)
Origin
Sanctioned Psyker
Origins 
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