We've not actually seen Connie go all slice-n-dice yet, but we will.....and when she gets going....ouch.
I'm a little surprised that no one picked up on this, but she's changed outfits in the comic. Her dungeon-crawling duds (seen here) are slightly different to her day-wear.
Drawn with this playing in the background: www.youtube.com/watch?v=yDE2VQ…
EDIT: Got a lot of people mentioning something called "Attack on Titan". I'm always behind the times with anime. I'd never heard
of AoT until people started comparing this pic to it.