Thyr’s Gavel

Weapon (warhammer), artifact (requires attunement by a good cleric, fighter, or paladin)

Thyr bestows this unique warhammer upon his greatest champion, typically a high priest or paladin, though warriors have been known to wield the weapon at times as well. While using Thyr’s Gavel, you have a +4 bonus to attack and damage rolls. You can cast light on the warhammer at will. If you are a follower of

Thyr, you gain a +1 bonus to your AC and to all saving throws. If the weapon is willingly picked up by an undead or evil creature, that creature must succeed on a DC 14 Wisdom saving throw or take 20d10 radiant damage. Such a creature that retains possession of the hammer must make a new DC 14 Wisdom saving throw or take 20d10 radiant damage every hour.

Destruction. Thyr’s Gavel will be cracked and powerless when all evil is eliminated, and ultimate Good reigns.