I was clearing out a mansion when I had this idea, and as far as I know it isn’t quite possible:
The ability to shove enemies away from you and into another tile.
Now, you can push enemies out of a window, which would be super useful if you are on high floors. Then there are things like traps and fire you could use too! If nothing else, it can give you a chance to get just a little distance more between an enemy.
This would probably have a fair amount of difficulty in it, and require a considerable amount of strength depending on what you are shoving. There will be no guarantee that you’ll succeed either, and some enemies might actually be impossible to move (good luck shoving a freaking zombie hulk).