Idk what you guys are reading, give me those novels damn. Every novel that promised those traits have only been fulfilled 1/10 times. It's usually a fake coldness or only towards some specific enemies, false smartness that's only because of a singular thing they did, manipulative I've literally only come across maybe 2 novels, and no mercy... 3 novels.
I feel like if it's only done once, it's not a true personality lol. It has to be consistent, otherwise what's the point. That's why I assume that comment wrote that.