Captains
In single player a Dragon and Shaman came in range killing my General. Next turn I attacked with 3 captain all in range. They didn't trigger each other when attacking the dragon or the shaman. These 2 units may have been inorganic I didn't check.
dosn't matter if the target is inorganic it affects friendlies so only friendly inorganics will be unaffected by it, works just like longbowman's skill