Amulet of Second Chances

This amulet resembles a small angel figurine hanging from a silver chain.

It holds two charges of the spell revivify. As an action you can use this amulet to cast the spell revivify without spending any material components.

While attuned to this amulet, if you drop to 0 hit points, you drop to 1 hit point instead and any hostile creatures in a 20 ft. radius take 2d6 radiant damage. This happens automatically and only once. After this feature has been used only the charges of the revivify spell remain if any.

Once the amulet is devoid of all charges and has used the feature to automatically revive the user, it explodes in a bright flash of holy light, healing the user and any allies in a 20 ft. radius by 2d4 + 4 hit points, any enemies within the radius suffer 1d8 + 4 radiant damage, double if the enemies are undead or fiends.