Sylphwings actually werenāt in the original version of this story. Lilith had a blue roan horse named Dusty, who then became the first idea for a Sylphwing, who then became our beloved Epona, who then went back to Tora the Sylphwing.
Sylphwings are based off of Ikrans from Avatar (the blue people one) and dragons, and loftwings. As for what they are, who knows.
Sylphwings: the colorful apex predators of the Hithlaerian mountains, these beasts are believed by scholars to be the direct descendants of the loftwings of Skyloft, much like how their riders are closely tied to the floating islands. These beasts are vicious, the only known animal to prey on monsters of any size. Aeshyraās safety is mostly due to these beasts, their ferocity keeping the skies above safe. Sylphwings bind with only one hylian the entirety of their lives, believing to choose the person that matches their spirit and soul. Aeshyrans often believe them to be their other halves. Claiming a Sylphwing often happens after turning 12, though there are a few exceptions.
Tora: Known as the Emerald She-Demon, this beast is the infamous mount of the eldest daughter of the Wind-Speaker. Tora bonded with Lilith during the girlās Wing Ceremony, but only after flinging the two off Draconis Island during their fight, where Tora had ripped a chunk of flesh out of Lilithās left shoulder. The sylphwing is loyally fierce, and willing to go toe-to-toe with monsters and predators much larger than she is. She is still considered a juvenile, as sylphwings reach full maturity at 20 years old. Tora will not let anyone but Lilith ride her, even if Lilith is the one steering. When they Eye of Ganon captured the sylphwings, Tora was responsible for the killing of numerous cultists who attempted to ride her. Tora will willingly look for fights, and can be seen trying to fight and wrestle with her rider at any given moment.
Talu: Regarded as the Crimson Fury, this sylphwing is larger than most of its kin, and ten times as ferocious. It is known to chase after its own kind looking for fights, and is notorious for killing Torathorns, both for food and for sport. Claimed by Lance de Chevallier, the two were bonded for twenty years, and Talu has been rarely seen since Lanceās death. The crimson sylphwing helped defend Aeshyra during the Great Disaster, helping to chase down and kill the Gleeok responsible. Talu was one of the two sylphwings not captured by the Eye of Ganon. Tora tried to fight Talu once.
Mistdancer: The partner of Wind-Speaker Rhea, this sylphwing possesses a gentle nature, and is the perfect partner for the dutiful chieftain of Aeshyra. Mistdancer, although old and not quite as fast as she used to be, is still fierce in battle, and has a unique horn shape resembling an ivory crown. Rhea is said to be the only Hylian who claimed her sylphwing by simply walking up to it. Mistdancer was known to carry Lilith around like a hatchling when she was a baby.