Hinasci

The hinasci or equimagna (Equum magna) is a species of massive equine native to Goridantets. It features prominently in Goridantic mythology.

Goridantic mythology
They are said to have once been the protectors of the Goridantens, until the evil vampire Mirmisc converted them to his armies, ushering in the extermination of all humans on the island, resulting in a population of half-corporeal ghosts.

An alternate version of the story, popular among the frostwight clans in the Numientfa Mountains, shows the hinasci as being enslaved by the humans rather than standing up as willing protectors, their long-burning thirst for freedom and vengeance sparked by Mirmisc.