It's the best boss! AND she has a rocket punch!

...She's actually really fuckin' weird for a shotgun. She has 22 armour which makes her decent at shotgun things, but the rest of her kit is pretty nonstandard. First she has a permanent slug effect of being single target but doing bonus damage. You'd think this would make her do less than slugs, but apparently between her raw firepower stats, buckshot increasing her firepower some more, and her unique gear ALSO increasing her firepower, she ends up with more damage than a typical shotgun with slugs.

She does have a knockback skill but it's slow at 8s, and at having 1 ammo limit, it means her RoF is more limited. So if you want a purely tanky shotgun, she's worse at it than a typical one. She does however produce surprising damage from her rocket punches, and she has very good tile buffs for a shotgun.