The Guard Golem is a Big Decor introduced in the 12.0.0 update.
It is a big metal knight that wields a sword and a shield. It wears a horned silver helmet, some yellow on the front and a miniature skull. It's face is dark red and dons red eyes. Most of its armor are silver plated. Some parts are yellow, red, brown and dark gray.
It has red orbs for its joints and on the center of its body, it shows a target sign orbiting its core, which was its only hitbox.
It is used to greatly increase the efficiency of Gadgets.