Arion

…Cthere is no man that shall catch thee by a burst of speed, neither pass thee by, nay, not though in pursuit he were driving goodly Arion, the swift horse of Adrastus, that was of heavenly stock …(excerpt from Homers Iliad) This ancient description from the Iliad should show every reader the godly abilities of this heavenly horse.

 Arion was an ancient Greek mythical creature that took the form of a giant, extremely swift horse. Arion was endowed with both eternal life and the ability to speak.

By some accounts Arion was born from a union of the Sea god Poseidon in the form of a stallion and the Earth goddess Demeter in the form of a Fury. Other accounts attribute the birth of Arion to the Earth goddess Gaia.

In the myth of Heracles, Heracles takes Arion from Oncus, a son of Apollo who raised horses in a grove near the ocean. Demeter had been hiding there from Poseidon but Poseidon found her and sired Arion. Arion then ran with the herd. Having obtained Arion from Oncus, Heracles then rode Arion during the war against the Eleans. Because of Arion, Heracles did win that war.

So not only was Arion the fastest horse but also a trusty companion.