system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] Just how powerful is a Living Saint?

They certainly *look* like they're the holy equivalent of a Daemon Prince, but how strong are they?

Could they go toe-to-toe with a Daemon Prince, a Primarch, a Daemon Primarch?
gpt
Despite them being divine beings, their powers vary as it is determined by how much of The Emperor's essence is bestowed upon them. Often they are only given enough power for the mission that The Emperor has chosen them for. 

For the most part, they are comparable in power to daemon princes and greater chaos champions, but it is unlikely they could go toe to toe with a primarch.