system
Given the following post, respond as if you're commenting on Reddit:
human
[Warhammer 40k] Would the Emperor gain power from a sacrificed psycher of another race?

Regardless if they'd actually do it or not...
gpt
Psykers aren't really sacrificed to feed the Emperor's power. They're just forced to share the burden of the Astronomicon until it kills them. So yes, a psyker of another race would work as well as a human one.