Arrow of Slaying

This magic ammunition is meant to slay creatures of a particular type, which the DM chooses or determines randomly by rolling on the table below. If a creature of that type takes damage from the ammunition, the creature makes a DC 17 Constitution saving throw, taking an extra 6d10 Force damage on a failed save or half as much extra damage on a successful one.

After dealing its extra damage to a creature, the ammunition becomes nonmagical.

Arrows are used with a weapon that has the ammunition property to make a ranged attack. Each time you attack with the weapon, you expend one piece of ammunition. The ammunition of a firearm is destroyed upon use. Drawing the ammunition from a quiver, case, or other container is part of the attack (you need a free hand to load a one-handed weapon). At the end of the battle, you can recover half your expended ammunition by taking a minute to search the battlefield.

Arrows are typically stored in a Quiver (bought separately).