Summon your wind-up Ixion minion. A horse is a horse, of course. Except when it is Ixion.
In a bid to lure brave (or foolish) adventurers to hunt the legendary steed Ixion, the people of Gyr Abania pitched in coin to have this mammet produced─a handsome reward, they believe, for risking grisly death by impalement and/or lightning.
How to obtain:
FATE -- Eschina - Rhalgr's Reach - 5 Ixion Horns (FATE "A Horse Outside" - The Lochs)