Reading through the accepted characters, it seems John and Rick share quite a bit of similarities, except the bad stuff John does is always solely for science, discovery and/or curiosity. Which brings me to a few questions.

1)Analysis magic. I would assume it would a psionic type, basically something that would allow John to analyse various tissues (and flora) to determine various things about them, allowing his Pharmaceutics skill to be of some use. Also allow him to expand his anatomy knowledge to more creatures, after he dissects them, of course.

2)Souls, more specifically, is something like dissecting a soul theoretically possible, and what would be the results, because John would do that if he could.