Silver Cross of the Saints

Wondrous item, legendary (requires attunement by a good aligned cleric)

Once attuned, this magic item increases by 2 the DC for saving throws against your attempts to turn undead. In addition, any undead that fail their saving throw take 1d6 radiant damage before attempting to flee. It also allows you to attempt to turn (though not damage or destroy) lycanthropes.

Only good characters may employ the cross; Evil characters must succeed on a DC 15 Wisdom saving throw to even touch it, and gain 2 levels of exhaustion in doing so.

Destruction. To destroy the silver cross, it must be melted down in the forges of the Abyss.