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