The Knights are a slightly heavier class of enemy than the Stygian. Most of them tend to carry around a heavy shield of some time that makes them immune to damage from the front but this class also includes some varients that don't carry shields. These enemies are still immune to certain types of attacks, despite this. These enemies tend to play defensively but once you get too close, they'll wind up with a heavy attack. Thankfully, most of these enemies are too slow with their attack and give you ample time to hit with a heavy attack of your own.
The Arbiter or Eryx the tend to be best for these enemies but some of these enemies are only vulnerable to Angelic Weapons. In most cases, you want to hit them a couple of times to break their shield with one of the heavier weapons and then get them up in the air so you can deal with them one at a time.
