5e SRD:Air Elemental
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Large elemental, neutral
Damage Resistances lightning, thunder; bludgeoning, piercing, and slashing from nonmagical attacks
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.
Multiattack. The elemental makes two slam attacks.
Slam. Melee Weapon Attack: +8 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 13 Strength saving throw. On a failure, a 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.
An air elemental is a funneling cloud of whirling air with a vague semblance of a face. Although it likes to race across the ground, picking up dust and debris as it goes, it can also fly and attack from above.