Fantasy Monster: Fish-Out-Of-Water

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Fish-out-of-water

A sizeable bubble of water floating across air with a weirdly looking fish swimming inside.

CR 5; XP 1,600
N Medium Aberration (aquatic)

Init +6; Senses darkvision 60 ft.; Perception +14

Defense
AC 18, touch 15, flat-footed 16 (+3 deflection, +2 Dex, +3 natural)
hp 55 (10d8+10)
Fort +4; Ref +5; Will +8

Defensive Abilities water bubble

Weakness susceptible to freezing

Offense
Speed swim 30 ft.

Melee tail slap +10 (2d6+3)

Statistics
Str 14, Dex 14, Con 12, Int 1, Wis 13, Cha 7
Base Atk +7; CMB +9; CMD 21 (can't be tripped)

Feats Blind-Fight, Improved Initiative, Run, Vital Strike, Weapon Focus (tail slap)

Skills Perception +14, Swim +10

Ecology
Environment any non-aquatic
Organization solitary, pair, or shoal (3–12)
Treasure standard

Special Abilities

Susceptible To Freezing A water bubble surrounding a fish-out-of-water is susceptible to effects that can freeze water or deal cold damage, staggering the fish-out-of-water for one round, while its psychokinetic abilities prevent the water from actually freezing.

Water Bubble (Su) A fish-out-of-water is surrounded by a psychokinetically maintained bubble of water that protects it from surrounding environment and allows it to swim through air, a few feet over the ground—which allows the fish to ignore difficult terrain caused by surface itself, but not anything that extends higher than two or three feet. Anyone attacking a fish-out-of-water suffers –2 penalty to attack rolls and inflicts half the bludgeoning and slashing damage (unless they have freedom of movement effect or otherwise ignore penalties for fighting in water), and anyone trying to move through its space, is treated as if moving through a square of deep water. The fish-out-of-water is unaffected by fighting in water penalties because of its instinctive psychokinetic control over the bubble itself. The water in the bubble constantly circulates, expelling any impurities and contaminants. It also replenishes itself by drawing moisture from the air, and trace amounts of water from nearby sources. A fish-out-of-water in environment completely devoid of oxygen suffocates after 1d4 hours.

A fish-out-of-water is a weird fish that thrives on dry land... By taking its own piece of ocean  wherever it flies swims. While looking exotically, with too many and often asymmetrical fins here and there, its behavior is not that different from an animal in its favored environment—though a lot of land life is unprepared to deal with them, making fish-out-of-water a surprisingly efficient invasive species.

Alleged sightings of much larger specimens showing here and there are never backed up with hard evidence. They always seem to come from fishermen known for their exaggeration when it comes to fish size.