In my current Yomi EA game, I have been using my Oni prophet (lvl 3 priest) to summon souless after battles. Corpses in a province result in armored souless. So far every reanimation has yielded 24 units. This has come in very handy.
I can't speak to the strange results that you received in your test yet. Will try to watch for it when I field some additional priests. Right now I am kicking ermors tail with my prophet and legions of Kuro-Oni.
