Garmabot

Garmabot is a giant robot that Lord Garmadon uses as a weapon against the Green Ninja. It has a giant drill in place of one hand and another hand has lasers. One hand can hold a double edged sword, while the fourth hand is free for whatever it needs to do.

This view shows the entrance hatch to the control center. The robot's operator sits at the control panel and directs its movement.

Here's a close up of the two bladed sword.