ne large air elemental 

Perception +14; darkvision, smoke vision

Languages Auran

Skills Acrobatics +15, Stealth +15 (+17 in smoke)

Str +2 Dex +5 Con +3 Int -2 Wis +4 Cha +0

Smoke Vision The belker ignores the concealed condition from smoke.

AC  25; Fort +13, Ref +17, Will +12

HP 78; Immunities bleed, poison, precision, paralyzed, sleep

Smoke Form The belker can occupy the same space as other creatures.

Speed 25 feet, fly 40 feet

Melee [>] claw +17 (agile, finesse), Damage 2d10+5 slashing

Melee [>] wing +17 (agile, finesse, reach 10 feet), Damage 2d8+5 bludgeoning

Noxious Fumes [>>] Requirements The belker occupies the same space as a Medium or smaller creature; Effect The belker attempts to flow into the creature's lungs; the creature must attempt a DC 23 Fortitude save. On a failure, the creature partially inhales the belker and is immobilized by the pain of the smoke rasping in its throat and lungs. The creature can attempt to exhale the belker by spending an action coughing and succeeding at a DC 23 Fortitude save. Most of the belker remains outside the creature, so the belker can still act normally. If the belker moves out of the creature's space or uses Noxious Fumes again, the creature automatically exhales it.

Smoke Slash [>] Requirements The belker is partially inhaled by a creature; Effect The belker automatically deals its claw damage to the inhaling creature by forming a claw to slash and scrape the creature from within.

Bestiary 2, page 106. Expanded in LOIL.