Airjelly
Thundercloud Oozes.
Size & Type: Small Ooze
Space/Reach: 5'/5', 10' reach with tendril.
HD: 2
Speed: Fly 80' (Perfect)
Ability Scores: Str -4, Dex +12, Con +18, Int -, Wis -10, Cha -10 - Net +6, three penalties
Natural Armor: 0
Natural Weapons: One Primary Tendril (1d3 plus 1d6 Electric)
Skill List: N/A
Body Shape: Ooze
Speech (Languages): N/A
CR: 2
WotC LA: -
Our LA: +2
On top of an interesting chasis, they get Weapon Finesse as a bonus feat. They're naturally translucent, giving them concealment that Blindsense and Blind-Fight are called out as ineffective against. Once per hour, they can focus their electrical charge to explode in a 10' burst of electricity. Creatures in the area must make a DC20 Reflex save or take 1d6 electricity damage per two HD the Airjelly has and be dazed for one round. This is presumably Con-based, but not mentioned as such.