Credits: Terraria - Brain of Cthulhu Undertale(sounds) Laser Crystal. This is the first galactic crystal and could transfer energy to laser weapons, making them more powerful. Aliens have created a special robot to store and use this thing. They called this Mechanical Brainy. The robot can create an army of mini-robots in the form of mechanical eyes. Mini-robots shoot lasers, emit a beam or create a sword from pieces of crystal. Mechanical Brainy and Laser Crystal also have these abilities as their minions. True, unlike Laser Crystal, it can teleport.
