A unique armored knight encountered in a special room of the Clock Tower (Castle A). It features the same color scheme as the Living Armor, but instead of wielding a sword, it holds a greatshield that renders it completely impervious to attack.
Much like the other giant armors encountered in the game, it will be knocked back every time it is struck, although in this case it will sustain no damage whatsoever. Fortunately, the room where it 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 it in, destroying it completely and sending its body parts flying all across the room, which Juste can then equip as armor pieces of his own.
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: