Bladeling

+2 Dexterity: Bladelings have a natural agility that makes them deadly warriors.
Speed: Bladeling base speed is 30 feet.
Darkvision: Bladelings have darkvision up to 60 feet.
Natural Armour: Bladelings have a +4 natural armor bonus.
Natural Weapons: All bladelings automatically have a claw attack that deals 1d6 + Strength modifier points of slashing damage.
Razor Storm (Ex): Once per day, a bladeling can expel shrapnel-like bits of its skin in a 15-foot cone, dealing 2d6 points of piercing damage to any creature in the area. A Reflex save (DC 10 + Constitution modifier) halves the damage. After this attack, the bladeling’s natural armor bonus drops to +2 for 24 hours.
Immunities (Ex): A bladeling takes no damage from acid, and it is immune to rust attacks despite its metallic hide.
Resistances: Cold and fire resistance 5.
Metal Hide: Certain spells that affect armor, such as heat metal, treat the bladeling as though wearing armor that cannot be taken off. In addition, the spikes on the bladeling’s body make it impossible for a bladeling to wear medium or heavy armor.
Languages: Infernal, Planar Trade, home region. Bonus Languages: Giant, Goblin, Orc.

Bladeling

Planescape: Twilight of the Idols manunkind