Blighted Guardian

Hive Mind. The Blighted Guardian is connected to the Blighted Hive Mind. It can communicate telepathically with other Blighted creatures.

Blighted Scourge. The Blighted Guardian’s natural attacks carry the Blighted Scourge infection. A creature hit by its attacks must make a DC 17 Constitution saving throw or advance one stage in the Blighted Scourge.

Incorporeal Fusion. As a bonus action, the Blighted Guardian can meld into an inorganic material it touches (such as stone or metal) and becomes indistinguishable from that material. While fused, it gains immunity to all damage except radiant. It can remain in this state for up to 1 hour or until it attacks or uses an ability.

Corruptive Barrier. (Recharge 5-6) The Blighted Guardian can project a blighted energy field within a 20-foot radius for 1 minute, creating a difficult terrain area that harms non-blighted creatures. Creatures entering or starting their turn in the field must succeed on a DC 17 Constitution saving throw or take 14 (4d6) blighted energy damage and advance one stage in the Blighted Scourge.

Protective Instinct. When the Supreme Scourge is within 60 feet, the Blighted Guardian gains advantage on all saving throws and can’t be surprised.

Multiattack. The Blighted Guardian makes two Slam attacks.

Slam. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage plus 9 (2d8) blighted energy damage. The target must succeed on a DC 17 Constitution saving throw or advance in the Blighted Scourge infection.

Blighted Shield (Recharge 5-6). The Blighted Guardian creates a 15-foot-radius shield of blighted energy around itself. Allies within this shield gain resistance to all damage except radiant. The shield lasts for 1 minute or until dismissed.

Blighted Surge (Recharge 5-6). The Blighted Guardian releases a surge of blighted energy in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 36 (8d8) blighted energy damage on a failed save, or half as much damage on a successful one. Creatures that fail the saving throw also advance one stage in the Blighted Scourge infection.