The Builder Scarab can detect infiltrated units at a larger radius than any other unit in the game and moves faster than most of the Necron army making it a very effective spotter. Note: This is the only unit in the Necron force that can capture Strategic Points, Critical Points and Relics. They also maintain all of the Necron equipment and repair damage done by the living. Builder Scarabs are responsible for summoning the ancient Necron constructs from deep within the surface of the tomb world.