[@Raptorman] I haven't actually read through every character sheet, I don't actually know what Mercy's powers are. Though I did know she was a villain.

[@Dedonus]
The simplified statement is that without motivation other than spooking a few NPCs who don't have any emotional yield, most people are going to be averse to being a villain. Because most people don't UNDERSTAND that killing isn't the only motivation. 

Killing is a means to an end for a good villain, it isn't their end goal.

[@NeutralNexus]
I'm not saying it should be a contest, because heroes always win. Simply because that's how heroes work, they rally people to their cause. They work together and eventually they overcome the obstacle. 

I'm just saying that a good villain always needs something up their sleeve, and unfortunately in this medium it's to hurt them. To make them useless or to make them dead. 

I could list off other ways to hurt them, but it's 12 am and I'm not exactly in the right mindset to hunt down ways to hurt characters.