There are two groups of creatures, according to Fenix, that can accurately portray deadly beauty: plants and sea creatures. So, when the order went out to SORUS employees to create a beautiful but deadly aquatic creature, Fenix hopped right on board.
She began by taking three of the, in her opinion, most beautiful carnivorous fishes: the sail fish, thresher shark, and the lionfish. Though still deciding on an official name, shes come to call it the butterfly sword, to emphasize its deadly beauty.
From the sailfish the animal got its deep blue base, lean muscular body, long bannerlike dorsal fin and and sword like bill. It can raise and lower all of its fins and turn on a dime. Though its bill is primarily used for investigating things (such as poking unsuspecting humans to see what they do), they can be used to ram into or batter an enemy in a pinch.
From the shark it received a full set of teeth, extra gill slits, and the long thresher tail. The tail, combined with the sailfishes already impressive muscle structure, gives extra speed to help balance out the drag from the long fins. Also from the shark, it gets a keen sense of smell and sight, and a long strong tail to batter enemies.
From the lion fish it gets its true beauty. It has the trademark long wispy fins and bold orange color or the lion fish. It also gets an extra weapon: every spine in every fin, not just the orange colored ones, packs a poisonous sting. Regular lion fish toxin, although painful, is typically not fatal to humans. However, in these creatures, the sheer size and amount injected makes it fatal. If the size and placement of the spine itself doesnt kill a victim, the hyperconcentrated neurotoxin will if not treated immediately. The fins are not all perfect however, as their size and fan shape cause a lot of drag, slowing the fish down a bit.
Their body length is an impressive 6-8ft long, and the tail and beak add another 3-4 feet on either end, making a typical adult somewhere around 13ft in length. While this is not very big relative to most sea predators, these fish hunt in packs like sailfish, allowing them to overwhelm anything from a school of baitfish to a stranded whale. Given the choice, they will choose a diet of fish over one of mammals or larger predators, but can be trained to hunt and eat just about anything. They are fairly non violent, usually only attacking if threatened or hungry. They are somewhat curious, and will poke at people, boats, and other creatures or vehicles they encounter to figure out whether or not they should eat it. Though their intentions are usually not to kill anyone, people generally dont want to swim with them.