An arrow of slaying is a Magic Weapon
meant to slay a particular kind of creature. Some are more focused than others; for example, there are both Arrows
slaying and Arrows
of blue Dragon
slaying. If a creature belonging to the type, race, or group associated with an arrow of slaying takes damage from the arrow, the creature must make a DC 17 Constitution
saving throw, taking an extra 6d10 piercing damage on a failed save, or half as much extra damage on a successful one.
Once an arrow of slaying deals its extra damage to a creature, it becomes a nonmagical arrow.
Other types of magic Ammunition
of this kind exist, such as bolts of slaying meant for a crossbow, though Arrows
are most Common