The Wolf's Teeth Roll are employed against assaulting infantry climbing up the walls. Unlike rocks, stones or other debris, these thorny devices can be reused again and again provided the rope is not cut so running out of ammunition (rocks/stones/debris) is not a problem. In most instances they are heavier than the rocks thrown down and may require around two men to pull up and throw down.
Wolf's Teeth Rack
The Wolf's Teeth Rack can pushed to places that require additional fortifying. One fine example is pushing a few of these thorny carts near the gate. Should the enemy break down the gate and want to charge inside, these barriers with their deadly "teeth" will slow them down.
Mobile Debris Platform
A platform that can be moved to and fro on top of the walls. A few soldiers can be stationed on the platform to throw down rocks/stones or other debris with better accuracy at the enemy soldiers climbing up the walls or trenches.
