Runequest established the idea of spirit combat, as well as bound spirits. Whilst in Heroquest we mention a bound spirit as a retainer, and have 'monsters' like ghosts there is no real discussion of how to handle spirit combat in Heroquest. Now, of course, we don't need special mechanics to handle resolution in Heroquest, but I have been thinking a little about how you might handle this aspect in Heroquest if you wanted to.
Spirit combat must involve a disembodied spirit. Only a shaman, wh