Well, the closest thing I have to a "bad guy" is this guy I haven't drawn in the last 2 years, his name is Derek and he's just an asshole
The things he has all over his body are a kind of rubber balls that when you throw them at someone they stick and start to multiply, They devour the skin of their victim and do not stop until there is nothing left of it.
He only uses these powers when he gets really upset with someone, at the end of the day he still has to work and pay his rent