A tracked bot designed to protect and defend against all enemy attacks within a perimeter of 10 to 25 meters. The individual shields of bots and buildings are re-energized through the shielder's defensive actions. This bot is the only way to get through narrow passages adorned with poisonous green mushrooms.
The energy consumption is proportional to the radius of the protective sphere. With a radius of 10 meters, the bot can work 2.5 times longer than with the maximum radius of 25 meters.