drothgery said:
No, they can't (at least, not unless the DM just enjoys poking at corner cases of the system). When Evil Priest Bob sends a devil to abduct the toddler Princess Jane, it's not a minion relative to the princess, so if for some crazy reason dice are involved in the fight at all, the devil's not statted as a minion for that fight.
I don't run NPC-on-NPC fights unless they're VERY vital (two people are duelling and the PCs really care about the outcome but, for some reason, can't directly intervene), but I do try to check for quasi-believability, so the players won't be distracted by red herrings.
For example, if the Lord High Commander Of The Realm, known to be a great warrior, is allegedly killed by two ordinary kobolds, the PCs would be right to not accept this at face value -- it doesn't happen in D&D, period. So if I want a princess kidnapped, if she's a child or a commoner, then, yeah, a minion can do it -- assume she won't roll a 20 before the minion has her in GM Discretion Land. (A Hero system in-joke, sorry.) Indeed, following the normal rules of these things, if there's one devil, it CAN'T be a minion. So goes the narrative flow.
OTOH, if the princess of the realm is also a powerful figure, in game terms, then I expect the kidnapping entity to be one which could reasonably defect her before she could escape, summon guards, and so on. You don't need to roll out the entire fight; you do, in my mind, need to "finger in the wind" the conflict so that it's plausible by game rule as well as storytelling logic. The thing about being a DM is, you have an unlimited toolbox -- you can send ANYTHING to kidnap the princess, so why not pick something which makes internal sense as well as driving the plot forward?