Gargantuan Elemental (Air)

Hit Dice: 36d8+216 (378 hp)

Initiative: +16 (+12 Dex, +4 Improved Initiative)

Speed: Fly 100 ft (perfect)

AC: 26 (-4 size, +12 Dex, +8 natural)

Attacks: Slam +35/+30/+25/+30 melee

Damage: Slam 2d10+12

Face/Reach: 20 ft by 20 ft/20 ft

Special Attacks: Spell-like abilities, air mastery, whirlwind, summon air creatures

Special Qualities: Elemental, immune to air attacks, damage reduction 15/+3, SR 20, immunities

Saves: Fort +17, Ref +32, Will +16

Abilities: Str 26, Dex 35, Con 20, Int 20, Wis 18, Cha 18

Skills: Concentration +16, Intimidate +14, Knowledge (the planes) +15, Listen +29, Spot +29

Climate/Terrain: Any land and underground

Organization: Solitary or troupe (Yan-C-Bin plus 1d3 Large or Huge air elementals, 2-5 cloud giants, and 1-2 invisible stalkers)
Challenge Rating: 17

Treasure: Double standard

Alignment: Always neutral evil

Advancement: —

Yan-C-Bin appears as a 35-foot tall air elemental and makes his home in a large airy palace on the Plane of Air.

COMBAT

Yan-C-Bin attacks with his slam attack and spell-like abilities in combat. If he becomes bored with combat or combat goes against him, he uses his summoning ability to call air creatures to his aid.

      Spell-Like Abilities: 3/day—control winds, chain lightning, obscuring mist, and wind wall; 1/day—control weather. These abilities are as the spells cast by a 20th-level sorcerer (save DC 14 + spell level).

      Air Mastery (Ex): Airborne creatures suffer a –1 penalty to attack and damage rolls against an air elemental.

      Whirlwind (Su): Yan-C-Bin can transform himself into a whirlwind once ever 10 minutes provided he is and remain in that form for up to 18 rounds. In whirlwind form, he can move through the air or along a surface at his fly speed.

      The whirlwind is 5 feet wide at the base, up to 30 feet wide at the top, and 80 feet tall. He controls the exact height, but it must be at least 10 feet.

      Creatures of Huge or smaller size take damage when caught in the whirlwind and might be lifted into the air. An affected creature must succeed at a Reflex save (DC 33) when it comes in contact with the whirlwind or take 2d8 points of damage. It must also succeed at a second Reflex save (same DC) or be picked up bodily and held suspended in the powerful winds, automatically taking damage each round. A creature that can fly is allowed a Reflex save each round to escape the whirlwind. The creature still takes damage, but can leave if the save is successful.

      Yan-C-Bin can eject any carried creatures whenever he wishes, depositing them wherever the whirlwind happens to be.

      If the whirlwind’s base touches the ground, it creates a swirling cloud of debris. This cloud is centered on Yan-C-Bin and has a diameter equal to half the whirlwind’s height. The cloud obscures all vision, including darkvision, beyond 5 feet. Creatures 5 feet away have one-half concealment, while those further away have total concealment (see Concealment page 133 in the PHB). Those caught in the cloud must succeed at a Concentration check to cast a spell (DC 33).

      Summon Air Creatures (Sp): Once per day, Yan-C-Bin can automatically summon 1d3 Large or Huge air elementals, 1d4 invisible stalkers, 1d4 cloud giants, or 1d3 wind walkers.

      Immune to Air Attacks (Ex): Yan-C-Bin is immune to any object cast into the air (thrown objects, missile weapons, etc.). This immunity does not extend to spells.

      Elemental: Immune to poison, sleep, paralysis, and stunning. Not subject to critical hits.

      Immunities (Ex): Yan-C-Bin is immune to electricity effects and petrification.