Chain-shot

Chain-shot is a unit of ship ammunition which, when fired from an onager, will primarily damage the sails of a target ship while doing a small amount of damage to its hull. Chain-shot consists of six links of long chain bristling with bolts, spikes, and barbs and when coated dragon's tears, will cause the target ship's sails to catch fire. When fired at sea monsters, chainshot will slow the creatures movement speed for a short time.