pukunui
Legend
I have no intention of saying "These ones are minions, they die with one hit". However, what I will most likely do is describe the ones that aren't minions slightly differently because they'll probably have non-standard equipment/appearance/etc.
Let's say the PCs get attacked by a whole tribe of goblins, most of whom are minions but some of whom are the guards, the chietain, and the shaman. I might describe the scene along these lines: "The goblin tribe rushes at you en masse. Most look like ordinary goblins but a few stand out from the crowd because they are dressed in better armor and look like they know how to wield their weapons properly. One goblin is slightly bigger than the rest and is dressed in furs and a cape. The skull of an indeterminate creature rests on his head and he wields a rod topped with the skull of a rodent. He appears to be shouting orders to the others. Also, at the back of the group is a goblin wearing nothing but a loincloth. A necklace of what appear to be teeth hangs around his neck. He is chanting in his own tongue and making subtle gestures with his hands."
This ought to tell the players that some of the goblins are more important than the others. Whether or not they know that the "mob" will all die with one hit or not is immaterial in my opinion. If they were paying attention, then they'll make sure they target the soldiers, the chieftain, and the shaman first. If the "minions" manage to get in the way before they die, then all the better.
Let's say the PCs get attacked by a whole tribe of goblins, most of whom are minions but some of whom are the guards, the chietain, and the shaman. I might describe the scene along these lines: "The goblin tribe rushes at you en masse. Most look like ordinary goblins but a few stand out from the crowd because they are dressed in better armor and look like they know how to wield their weapons properly. One goblin is slightly bigger than the rest and is dressed in furs and a cape. The skull of an indeterminate creature rests on his head and he wields a rod topped with the skull of a rodent. He appears to be shouting orders to the others. Also, at the back of the group is a goblin wearing nothing but a loincloth. A necklace of what appear to be teeth hangs around his neck. He is chanting in his own tongue and making subtle gestures with his hands."
This ought to tell the players that some of the goblins are more important than the others. Whether or not they know that the "mob" will all die with one hit or not is immaterial in my opinion. If they were paying attention, then they'll make sure they target the soldiers, the chieftain, and the shaman first. If the "minions" manage to get in the way before they die, then all the better.