Lifeblade

Weapon (scimitar), very rare (requires attunement by a cleric)

This +1 scimitar is engraved with markings of the goddess of life and healing. You deal an extra 2d8 radiant damage to undead and have advantage on saving throws against the abilities of the undead. Additionally, you gain resistance to necrotic damage and dead bodies cannot be turned into undead while within 100 feet of you. Finally, you gain the ability to cast sunbeam. Once you cast this spell, you must complete a long rest before casting it again.