Chain, Spiked (5e Equipment)
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Martial Melee Weapons
A spiked chain is a length of metal chain whose last few links on each end are enlarged and enhanced with spikes. The length and size of links should be proportional to the size of the wielder for best performance. At the half-way point of the chain and/or the midpoints of the two halves, a link of the chain is often replaced with a ring for grasping.
The spiked chain is considered a monk weapon, as defined in the monk's Martial Arts class feature.