Armor Of Darkness

Wraps the target in a full set of plate mail made from
darkness granting a +3 bonus to AC. The target can see
through the armor as if it did not exist and is also afforded
darkvision out to 60 feet. The target gains resistance to
radiant damage.
Undead creatures that are subjects of armor of darkness
also gain advantage against saving throws made to resist
paladin, cleric, or druid spells and effects.