The Gaze Knight is a slow, but powerful creature you find in some level 45+ dungeons. At first, they are nearly impenetrable due to their armor. The best thing to do about these creatures is to first use your Skills against them (i.e. Tri-Strike, or Tiger Blitz.) About to where they're vulnerable to regular and Rengeki attacks. It's best to use Broadswords, as they either come with another Gaze Knight, or some Crustaen. Both types need their armor to be depelted before their health bar really starts to go down. Be careful, though, as they deal a lot of damage. It would be wise, when facing this heavily armed foe, to rely on magical attacks, while wearing down their armor.
One was found by some keywords put on the Forum by a player, to get Null Garmet from the Treasure Box.