Aerial Servant

An aerial servant generally avoids combat in its native planes. However, if attacked or threatened, it responds by at-tempting to grab and strangle its opponent. An aerial servant is very strong and can easily carry weights in excess of 10,000 coins. An aerial servant in the command of a cleric will not fight for him, but will complete any other assigned duty, usually finding and returning an object or victim. If assigned to return a victim, the aerial servant grabs the victim as described above. If the summoning cleric does not protect himself by casting protection from evil or by standing inside a protective symbol, the aerial servant will attempt to crush and kill him. If the aerial servant is prevented from completing its as-signed mission, it becomes insane, returns to the cleric, and attempts to kill him. 

 Aerial servants are not organized into families, communities, or any other social units. They do not collect treasure. Aerial servants pass the time by soaring on the elemental, astral, and ethereal winds, exploring the infinite mysteries of their native planes. As they have no permanent lairs, aerial servants have a virtually limitless range and are not tied to any specific territory. They are particularly drawn to areas of extreme weather, such as the ether cyclones of the ethereal plane (sinuous, serpentine columns of force), the psychic wind storms of the astral plane (hurricane-like areas of darkness), and the aerial maelstroms of the plane of elemental air (doughnut-shaped tornadoes). Generally, aerial servants are able to avoid the dangers of these phenomena. However, if a careless aerial servant is caught up in one of these storms, there is a 5% chance it will be blown in two, with each half becoming a separate aerial servant. This is the only way aerial servants reproduce, an extremely painful process the aerial servants strive to avoid. Aerial servants will not voluntarily leave their home plane and have no interest in material plane affairs. They resent being summoned by clerics to the prime material plane and will attempt to complete their missions as soon as possible in order to return home. 

Aerial servants do not consume food for nourishment. Instead, they are refreshed and energized by being buffeted in the planar winds. Long periods of calm weather cause aerial servants to grow listless and weak. If an aerial servant is not exposed to a planar wind in excess of 30 miles per hour for 30 consecutive days, it risks suffering damage; beginning on day 31, it has a 10% chance per day of losing 1d8 hp of damage. Aerial servants re-cover lost hit points at the rate of 1d8 per hour of being buffeted by planar winds in excess of 30 miles per hour. They are unaf-fected by winds of the prime material plane. Aerial servants have no natural enemies. They rarely associate with other creatures, although they do have an affinity for air ele-mentals, occasionally tagging along after them. However, air elementals avoid and discourage contact with aerial servants, considering them an inferior species

Aerial Servant

Large elemental, neutral

Armor Class 15 (natural armor)

Hit Points 97 (13d10 + 26)

Speed 0 ft., fly 60 ft. (hover)

STR 18 (+4) DEX 16 (+3) CON 14 (+2) INT 6 (-2) WIS 10 (+0) CHA 7 (-2)

Damage Resistances lightning, thunder; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities poison

Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious

Senses darkvision 60 ft., passive Perception 10

Languages Auran, understands Common and Primordial but can't speak

Challenge 4 (1,100 XP)

Incorporeal Movement. The aerial servant can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

Invisibility. The aerial servant is invisible while on the Material Plane.

Actions

Multiattack. The aerial servant makes two slam attacks.

Slam. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be grappled (escape DC 13). Until the grapple ends, the target is restrained, and the aerial servant can't use the same arm to make another slam attack.

Whirlwind (Recharge 5-6). Each creature in the aerial servant's space must make a DC 13 Strength saving throw. On a failure, a target takes 15 (3d8 + 2) bludgeoning damage and is flung up to 20 feet away from the aerial servant in a random direction and knocked prone. If a thrown target strikes an object, such as a wall or floor, the target takes 3 (1d6) bludgeoning damage for every 10 feet it was thrown. If the target is thrown at another creature, that creature must succeed on a DC 13 Dexterity saving throw or take the same damage and be knocked prone.

Invisible Passage (1/Day). The aerial servant enters the Ethereal Plane from the Material Plane, or vice versa. To do so, the aerial servant must have a space to enter that is large enough for its body.