Magic Weapons. The elemental's weapon attacks are magical.

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.

Lightning Strike (Recharge 6). The elemental makes one slam attack. On a hit, the target takes an extra 18 (4d8) lightning damage, and the target must succeed on a DC 13 Constitution saving throw or be stunned until the end of the elemental’s next turn.

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 strike 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 as much damage and isn't flung away or knocked prone.