Air Elemental

Air Elemental CR: 5

Large elemental, neutral

Armor Class: 15

Hit Points: 90 12d10+24

Speed: 0 ft , fly: 60 ft , can hover

STR

14 +2

DEX

20 +5

CON

14 +2

INT

6 -2

WIS

10 +0

CHA

6 -2

Damage Resistances: Lightning, Thunder, Bludgeoning, Piercing, and Slashing from non-magical attacks

Damage Immunities: Poison

Condition Immunities: Exhaustion, Grappled, Paralyzed, Poisoned, Prone, Restrained, Unconscious

Senses: Darkvision 60 ft, passive Perception 10

Languages: Auran

Challenge Rating: 5

Air Form. The elemental can enter a hostile creature's space and stop there. It can move through a space as narrow as 1 inch wide without squeezing.

Actions

Multiattack. The elemental can make two slam attacks.
Slam. Melee Weapon Attack +5 to hit, reach 5 ft, one target. Hit 14 2d8+5 bludgeoning damage.
Whirlwind (Recharge 4-6). Each creature in the elemental's space must make a DC 11 Strength saving throw. On a failure, at target takes 15 3d8+2 bludgeoning damage and is flung up 20 feet away from the elemental 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. If the saving throw is successful, the target takes half the bludgeoning damage and isn't flung or knocked prone.

Air Elementals are spirits originating from the Elemental Plane of Air. They can be summoned to the Material Plane my some spellcasters or creatures, or found in a region with a portal to the same Plane.