Lychantrops' amulet effects on national heroes

[llamabeast]

I wonder if being low on hit points contributes to the chance of change. I only mention it as it is so with fever fetishes.. and reusing code is good practise.

Meep, not so. Fever fetishes mainly produce gems on people with less hp that they started with, rather than just low hp. High hp carriers are a good choice because they last longer.