Penumbra of Spirits
2014Large undead, chaotic evil
Armor Class 15
Hit Points 110 ()
Speed 0 ft., fly 40 ft.
Initiative
Damage Resistances acid, cold, fire, lightning, thunder; bludgeoning, piercing, and slashing from nonmagical weapons
Damage Immunities necrotic, poison
Condition Immunities charmed, exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 60 ft., passive Perception 11
Languages understands all languages but can't speak
Challenge 7 (2,900 XP)
Actions
Multiattack. The swarm makes two melee attacks.
Withering Touch. Melee Spell Attack: , reach 5 ft., one creature. Hit: necrotic damage, or necrotic damage if the swarm has half of its hit points or fewer.
Etherealness. The swarm enters the Ethereal Plane from the Material Plane, or vice versa. The swarm is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet it can't affect or be affected by anything on the other plane.
Life Drain (Recharge 4-6). Each creature within 5 feet of the swarm must succeed on a DC 14 Constitution saving throw or take necrotic damage, or necrotic damage if the swarm has half of its hit points or fewer. A creature damaged this way has its hit point maximum reduced by an amount equal to the damage taken. This reduction lasts until the creature finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.