N Diminutive magical beast (air, extraplanar, swarm) Init +1; Senses darkvision 60 ft., electricity sense; Perception +0
--- AC 13, touch 13, flat-footed 12 (+1 Dex, +2 size) hp 66 (12d10) Fort +8, Ref +9, Will +4 Defensive Abilities split (electricity, 6 hp); Immune electricity, swarm traits, weapon damage
--- Speed fly 60 ft. (perfect) Melee swarm (3d6 plus 2d6 nonlethal electricity and distraction) Space 10 ft.; Reach 0 ft. Special Attacks cling to metal, dance of lightning, distraction (DC 16)
--- Str 1, Dex 13, Con 10, Int —, Wis 10, Cha 2 Base Atk +12; CMB —; CMD — Skills Fly +15, Stealth +29; Racial Modifiers Stealth +16
--- Environment any aerial (Plane of Air) Organization solitary or bloom (2–8) Treasure none
--- Cling to Metal (Ex) If a creature wearing metal armor, carrying a metal weapon, or made of metal (such as an iron golem) leaves a skyfish swarm's square, the swarm takes 1d6 points of damage to reflect the loss of its numbers as several skyfish cling to the victim. A creature with skyfish clinging to it takes swarm damage at the end of its turn each round. As a full round action, the creature can remove the skyfish with a DC 17 Reflex save. At least 5 points of damage from any area effect destroys all clinging skyfish. In addition, the skyfish cease clinging to the victim if it is no longer wearing metal armor, carrying a metal weapon, or made of metal. The save DC is Dexterity-based. Dance of Lightning (Su) As a standard action, a skyfish swarm can forgo dealing swarm damage this turn to produce a 20-foot-radius burst of electricity centered on its own space. All creatures in the affected area take 2d6 points of nonlethal electricity damage (Reflex DC 16 half). This damage can activate the skyfish swarm's split defensive ability. The save DC is Constitution-based. Electricity Sense (Ex) A skyfish swarm automatically detects any electrical discharge within 100 feet. Split (Ex) A skyfish swarm's split ability activates whenever it is subject to any electricity attack, including its own dance of lightning ability, even though it is immune to electricity.
Skyfish are translucent, jellyfish-like creatures native to the Plane of Air, where they gather in large blooms to dance in lightning storms. Skyfish are drawn to electrical discharges and to metal, feeding on associated energy currents. Swarms often engage in stunning aerial dances that discharge bursts of electricity as the swarming skyfish spread out to cover a larger and larger area.