A unique armored knight encountered in a special room of the Clock Tower in Castle A. He features the same color scheme as the Living Armor, but instead of wielding a sword, he holds a greatshield that renders him completely impervious to attack.
Much like the other giant armors encountered in the game, he will be knocked back every time he's struck, although in this case he will sustain no damage whatsoever. Fortunately, the room where he is encountered in happens to have a set of giant rotating gears conveniently affixed on the back. If the Guardian Armor is pushed all the way onto them, they will trap and pull him in, destroying him completely and sending the pieces of his armor flying all across the room, which Juste can then pick up and equip for his own protection.
This armor set provides above average defenses if compared with other armor pieces the player is most likely carrying at that point in the game: