QuarrelBlue wrote:Maybe it's a bit too complex to officially specify, but can Faith in a religion without the concept of reincarnation fulfill the prerequiste?
(I've heard that most of Christianity has no concept of past lives, and Keta Kalles has no concept of the afterlife.)
Yes. Christianity does not teach reincarnation. In fact, their central text specifically speaks against it.
The perk could be reskinned into some type of divinely inspired knowledge that allows the Storm Knight to know how to do things they normally wouldn't. A classic example might be a divinely implanted knowledge of language, such as is portrayed in Acts 2.