So, after another anime-fueled campaign brainstorm, I came up with the idea of giving some Nemesis level NPCs a signature ability. Has any other GM tried this?
I was thinking about Last Man Standing. It could be pretty useful if, say, the PCs are leading a squadron of Rebels, and they come across an NPC who utterly demolishes the PCs squadron, then says, "right, let's get down to it." I think this would be a fun narrative device, and also let people know that this NPC is not to be taken lightly.
An NPC could also used Unmatched Protection to take an insane amount of damage from the PCs and still keep going. I think this would be another great narrative device, especially if the main enemy was someone who just seemed to take all the damage the PCs could throw at her and still keep coming.
Has anyone tried this, or do you think it would make the NPCs overpowered?