As a designer, I love to explore user edge cases and figure out what appear to be rules.

Black Mask is new money. He's rich. He's very, very powerful. He's made it. He's known for being brutal and sadistic. And particularly at this point in the Arkham franchise he has enormous resources. He is the number one gang leader in Gotham. And has easily the most power in the city.

Shooting someone point blank still generates an explosion out of the end of a gun, even if the projectile is somehow ineffective.

There's a ton of potential to do something absolutely loopy with a world that you create and characters that you are literally surgically constructing.