Kettenhund (5e Equipment)
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Martial Melee Weapons
A pair of small, bear-trap-like jaws attached to a chain, kettenhund (literally translated as "chain dog") are popular among bounty hunters who need to take their target in regardless of their condition.
On successful hit with a kettenhund, you may initiate a grapple check against the same creature. On a successful grapple, you may initiate an additional grapple check against the grappled creature, dragging them 5 ft. toward you on a success, or nothing happening on a failure. The grappled creature may initiate an additional grappling check as a bonus action. On a success, the grapple ends. On a failure, they take 1d6 piercing damage.