Mob Defender

Mob defender
Properties
Protection range	99 x 99 x 99
Resource Requirements
Diamond Block 1
Any Glass 1
6 Any Glass Pane 6
Any Sign 1
4 Any Stairs 4
4 Stone Bricks 4

Mob defenders are a passive machine that prevent hostile mobs from spawning. The protection range originates from the sign of the multiblock.
Mob defenders can be detected with the sign text [mobdefender].
The stone brick blocks in this multiblock prevent it from being piloted and used on ships.