Large elemental, neutral

Armor Class: 15 (natural armour)

Hit Points: 90 (12d10+24) 12d10+24

Speed: -1 ft , can hover

STR

14 +2

DEX

20 +5

CON

14 +2

INT

6 -2

WIS

10 +0

CHA

6 -2

Skills: Proficiency Bonus +3

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

Challenge Rating: 5 (1,800 XP)

Actions

Multiattack. The elemental makes two slam attacks.   Slam. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) 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) 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) 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 away or knocked prone.