Ballista box

The ballista box is ballista that can be folded into a box like form. It was created by a half-elf warlord who was looking for a more tactical way to carry ballistas into battle. It can be used to tie things down by attaching rope to the spears it fires.

Buying the all the components to the ballista box is quite costly but can come in handy. The ballista box itself costs 50gp and ammunition costs 5gp each spear. Setting the box is a minor action - it unfolds and sets itself using the mechanical energy stored when it is boxed. It can be set in an adjacent empty square. Re-boxing it is a standard action. Loading the ballista with a spear is a move action.