Black Lagoon.
I finished it and one of the protagonists is one BAMF.

I loved everything of it.
The gun shootouts are epic.
I loveRevy
the animation is perfect.
Ginji was one badass swordsman.
When Roberta's Bloodhound instincts take over she IS ONE CRAZY MOFO, i absolutely loved the 3rd season/OVA.

To top it all off there were no supernatural powers!! just gunskill. im kind of bored of supernatural powers at the moment
is there any anime like black lagoon? where every episode becomes epic?