Scourge
Small Aberration (Zerg)
Hit Dice: 2d8 (9 hp)
Initiative: +6 (+6 Dex)
Speed: Fly 120 ft. (perfect)
Armour Class: 18 (+6 Dex, +1 size, +1 natural), touch 17, flat-footed 12
Base Attack/Grapple: +1/-5
Attack: Explosion +6 melee touch (see below)
Full Attack: Explosion +6 melee touch (see below)
Space/Reach: 5 ft./5 ft.
Special Attacks: Explosion.
Special Qualities: Darkvision 60 ft., blindsight, fast healing 1, immunity to poison and cold, resistance to acid and eletricity 15, Zerg traits.
Saves: Fort +0, Ref +6, Will +4
Abilities: Str 7, Dex 23, Con 11, Int 1, Wis 13, Cha 7
Skills: Hide +6, Listen +4
Feats: Weapon Finese
Environment: Any
Organization: Solitary, pair, pack (6-15), or flight (2-12, plus 2-6 Guardians, 2-6 Devourers, and 4-12 Mutalisks)
Challenge Rating: 10
Treasure: None
Alignment: Lawful evil
Advancement: 3-4 HD (Small)
Level Adjustment: --

   This swift-flying creature is small, with swept-foward wings, no visible eyes or limbs, and a circular mouth ringed with several rows of sharp teeth.

Description
   Catalytic agents found within the body of the Scourge cause it to explode like a living plasma bomb when it smashes against the hull of a larger vessel. Large numbers of these creatures can cripple a squad of fighters or even a Battlecruiser. Like the Zergling, the simplistic genetic makeup of the Scourge allows two of them to hatch from a single egg.

Combat
   These blind terrors seek out enemy starships and dive into them.
   Explosion (Ex): If a Scourge makes a successful melee touch attack upon an airborne enemy, it explodes, dealing 10d20 damage to anything in 100 feet. The target and the Scourge get no saves; anything else in the blast radius can make a Reflex save (DC 11) for half damage. Killing a Scourge in another method does not trigger this ability.