Huge Elemental , Neutral Evil
• Armor Class: 22
• Hit Points: 283 (21d12+147)
• Speed: 50 ft., fly 150 ft.

18 (+4) 24 (+7) 24 (+7) 16 (+3) 21 (+5) 23 (+6)

• Saving Throws: Dex +13, Wis +11, Cha +12
• Condition Immunities: charmed, frightened, paralyzed, petrified, poisoned, prone, restrained
• Resistances: cold, fire, bludgeoning, piercing, and slashing from nonmagical weapons
• Senses: blindsight 120 ft., passive perception 15
• Languages: Auran
• Challenge: 18 (20000 XP)

• Air Form: Yan-C-Bin can enter a hostile creature's space and stop there. He can move through a space as narrow as 1 inch wide without squeezing if air could pass through that space.

• Empowered Attacks: Yan-C-Bin's slam attacks are treated as magical for the purpose of bypassing resistance and immunity to nonmagical weapons.

• Legendary Resistance (3/Day): If Yan-C-Bin fails a saving throw, he can choose to succeed instead.

• Magic Resistance: Yan-C-Bin has advantage on saving throws against spells and other magical effects.

Innate Spellcasting

Yan-C-Bin's innate spellcasting ability is Charisma (spell save DC 20, +12 to hit with spell attacks). He can innately cast the following spells, requiring no material components:

• * At will: gust of wind, invisibility, lightning bolt
• * 2/day each: chain lightning, cloudkill, haste


• Multiattack: Yan-C-Bin makes two slam attacks.

• Slam: Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 20 (3d8 + 7) force damage plus 10 (3d6) lightning damage.

• Thundercrack (Recharges after a Short or Long Rest): Yan-C-Bin unleashes a terrible thundercrack in a 100-foot-radius sphere centered on himself. All other creatures in the area must succeed on a DC 24 Constitution saving throw or take 31 (9d6) thunder damage and be deafened for 1 minute. On a successful save, a creature takes half as much damage and is deafened until the start of Yan-C-Bin's next turn.

• Change Shape: Yan-C-Bin polymorphs into a Medium humanoid. While in polymorphed form, a swirling breeze surrounds him, his eyes are pale and cloudy, and he loses the Air Form trait. He can remain in polymorphed form for up to 1 hour. Reverting to his true form requires an action.

• Summon Elementals (1/Day): Yan-C-Bin summons up to three air elementals and loses 30 hit points for each elemental he summons. Summoned elementals have maximum hit points, appear within 100 feet of Yan-C-Bin, and disappear if Yan-C-Bin is reduced to 0 hit points.

Legendary Actions

Yan-C-Bin can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature's turn. Yan-C-Bin regains spent legendary actions at the start of its turn.

• Peal of Thunder: Yan-C-Bin unleashes a peal of thunder that can be heard out to a range of 300 feet. Each creature within 30 feet of Yan-C-Bin takes 5 (1d10) thunder damage.

• Teleport (Costs 2 Actions): Yan-C-Bin magically teleports up to 120 feet to an unoccupied space he can see. Anything Yan-CBin is wearing or carrying is teleported with him.

• Suffocate (Costs 3 Actions): Yan-C-Bin steals the air of one breathing creature he can see within 60 feet of him. The target must make a DC 21 Constitution saving throw. On a failed save, the target drops to 0 hit points and is dying. On a successful save, the target can't breathe or speak until the start of its next turn.