Air Elemental

AC 15     Initiative +5 (15)
HP 90 (12d10 + 24)
Speed 10 ft., Fly 90 ft. (hover)

Ability Scores
STR 14 (+2) Save +2    DEX 20 (+5) Save +5    CON 14 (+2) Save +2
INT 6 (−2) Save −2    WIS 10 (+0) Save +0    CHA 6 (−2) Save −2

Resistances Bludgeoning, Lightning, Piercing, Slashing
Immunities Poison, Thunder; Exhaustion, Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained, Unconscious
Senses Darkvision 60 ft.; Passive Perception 10
Languages Primordial (Auran)
CR 5 (XP 1,800; PB +3)

Traits
Air Form. The elemental can enter a creature’s space and stop there. It can move through a space as narrow as 1 inch without expending extra movement to do so.

Actions
Multiattack. The elemental makes two Thunderous Slam attacks.
Thunderous Slam. Melee Attack: +8, reach 10 ft. Hit: 14 (2d8 + 5) thunder damage.
Whirlwind (Recharge 4–6). Strength Saving Throw: DC 13, one Medium or smaller creature in the elemental’s space. Failure: 24 (4d10 + 2) thunder damage, and the target is pushed up to 20 feet straight away from the elemental and is knocked Prone. Success: Half damage only.