As in what part (or parts) of a character that are terrifying in action or given thought. It can be looks, personality, ideology, and/or an ability if applied with real-life implications.
For instance, Doomfist is scary because of his ideology; the concept of using conflict to further humanity implies a never-ending wave of war where if you aren’t strong, you will suffer or die.
Dva. I mean, just imagine the Canadian government decides they need someone to pilot an experimental exoskeleton suit specifically designed for warfare, but the individual operating the machine must have extremely quick reflexes. So, they recruit xQc, and right before he detonates the mech, he says “Time to get rolled and smoked” as he leaps out of the mech with a bag of Doritos in his hand and a bottle Coke in his pocket. I’d be terrified. I can only imagine fans of Dva felt the same way because they’d watched her play and know how good of a player she is.