Nothing- they are just a special horse with very good skills and a knack at winning competitions.
you have to get all the masks that fly as UFO's and then put them all on one horse
a special divine
This depends on the Harlequin's owner and the type of sale. Auction sales can end up in the millions while private sales can be negotiated. Some are sold for just equus, but most are sold for equus and passes.
They are occasionally released through promotions, or you can buy them in the sales. In the direct sales, Specials like Archimedes, Falabella, and Harlequin are plentiful.
Sapphire, Ruby, Gypse, Balios, Ocean, Mist, Cowbra, Archimedes, Snow, Croesus, Xanthos, Greyfell, Spleipnir, Harlequin
The harlequin was a character in Italian theatre.
Harlequin Enterprises was created in 1949.
Harlequin Valentine was created in 2001.
Requiem for a Harlequin was created in 1970.
Harlequin beetle was created in 1758.
Harlequin Melodies was created in 1968.
Harlequin Duck was created in 1758.
Harlequin League was created in 2007.
Harlequin Air was created in 1997.