Lego Brick Films Monster Fighters - Artifex

Monster Fighters is a theme introduced in May 2012. To date, ten sets have been released. Seven of the sets contain at least one Moonstone, and in the background story, the monsters attempt to collect them to unleash doom on the Earth by eclipsing the Sun forever, allowing the land of monsters into the minifigure's realm. The stones are based on the monster contained in its respective set.