Magic item · Rare · 2024 rules

Mace of Disruption

Weapon, rare (requires attunement)

When you hit a Fiend or an Undead with this magic weapon, that creature takes an extra Radiant damage. If the target has 25 Hit Points or fewer after taking this damage, it must succeed on a DC 15 Wisdom saving throw or be destroyed. On a successful save, the creature has the Frightened condition until the end of your next turn. Light. While you hold this weapon, it sheds Bright Light in a 20-foot radius and Dim Light for an additional 20 feet.

From the System Reference Document 5.2.1 by Wizards of the Coast LLC, licensed under CC BY 4.0. Credits