Arrow of the Hydra

This fine arrow of cedar wood and kingfisher feathers is tipped with a sharp hydra’s tooth. When you hit a target with it, the arrow deals an extra 3d6 poison damage. If you miss, the arrow lands in a DM-selected square, within 20 feet of intended target. At start of the next round, an undead skeleton claws out of the ground in that square. The skeleton acts on its own initiative, and attacks the nearest living creature until reduced to 0 hit points.

Notes: Damage: Poison, Damage, Combat, Bane