Grey Bricks

A type of brick used in MLN. They are gotten my Sending 1 Black Brick in a mantle's transmulting pool or having a pool and waiting for someone to click it.

How They Can Be Used
They are used in Cruiser Hull Cruiser Thrusters Galatic Factory Module Galactic Sticker Module Galactic Gallery Module Intergalatic Cruiser Lightworm Module Nebular Crystal Mine Module