Shield Drone

The Shield Drone is a drone that commonly appears throughout the early stages of the map, appearing to make up the bulk of the drone forces.

Design
The Shield Drone appears as a blue Worker Drone with a shield.

Appearances
The Worker Drone appears to appear in many locations throughout the Celestial. One teaser screenshot posted by Cavinator1 shows them in action in the Celestial.

Behaviour
The Shield Drone's attacks are simply the same as a slow, basic melee mob. What makes them unique however, is their ability to beam shields around other drones. This makes said drone completely invincible until either the Shield Drone dies, gets too far away from it (8 blocks) or targets another drone.

Strategy
Known, but you can't see it loser.

Trivia

 * The Worker Drone is likely an invisible humanoid mob (such as a zombie) wearing its drone head and holding a drone arm on each hand.